A company could have zero or more others as subsidiaries, which in turn could have zero or more others as subsidiaries and so on. Each company is a subsidiary of zero or one company. Which of the following diagrams seems most appropriate to model this?  

Students learn subjects from instructors. For example, Student John Doe learns Chemistry from Dr. Kimmel. This means that each student could be in zero or several classes (taught by several instructors and on several subjects); Each instructor might be teaching zero or several classes (for several students and on several subjects); and each subject might be in several classes (taught by several instructors and attended by several students. Which of the following diagrams correctly represents this?

How many required attributes does the following entity type have?

Given the diagram below, choose the most appropriate statement about the total number of attributes in the Player and Team entity types respectively;

Imagine a national museum is creating an exhibit on American literary history and is considering a prominent section dedicated to Ralph Waldo Emerson and Henry David Thoreau. You’ve been asked to write a proposal explaining why Emerson and Thoreau should (or should not) be featured as central figures in the exhibit. In your response: Discuss the key contributions of Emerson and Thoreau to American literature. What makes their works significant? Highlight how their ideas reflect or shaped the American identity and values. Make a case for their continued relevance today—or argue why their influence may be overstated. Your response should be organized into three clear sections: literary contributions, influence on American identity, and modern relevance (or lack thereof). Be specific and persuasive in your argument. Tips for Answering This Question Start with Literary Contributions: Think about Emerson’s role as the father of Transcendentalism and his essays like “Self-Reliance” or “The American Scholar.” Reflect on Thoreau’s Walden and “Civil Disobedience” as examples of his influence on individualism and resistance to injustice. Explore Their Influence on American Identity: Consider how their works promote ideas like self-reliance, the value of nature, and questioning authority. How do these ideas tie into broader themes in American history and culture? Make a Case for Modern Relevance: Highlight current events or cultural shifts that connect to their ideas (e.g., environmentalism, social justice, minimalism). If you think their influence is overstated, argue why their ideas may feel outdated or less relevant today. Be Specific and Persuasive: Use specific examples from their works or ideas to back up your argument. Take a clear stance: Are they essential to American literature, or do they occupy an outsized place in its history? Use Your Time Wisely: Spend 20-25 minutes on this question. Outline your argument before you write, and leave time to review your response. Evaluation Criteria (30 Points Total) Literary Contributions (10 points) Did you clearly and accurately explain the key contributions of Emerson and Thoreau? Did you use specific examples from their works? Influence on American Identity (10 points) Did you explore how their ideas reflect or shape American values and identity? Did your response show an understanding of their cultural impact? Modern Relevance or Critique (10 points) Did you make a thoughtful case for their continued relevance—or explain why their influence is overstated? Did you connect their ideas to modern issues or movements effectively?

A car has exactly one engine. Each engine could belong to one car or none. Select the correct diagram from below that is consistent with this description. Select only one.      

Based on the following diagram, what is the number of optional attributes in the two entity types? Consider the implicit and explicit ones.

From the diagram below, indicate how many customers does a payment correspond to. You can infer this even though there is no direct relationship between these entity types.

It is estimated that the average young reader is able to use __________ successfully only 5 and 20 percent of the time because even when the text’s clues are fairly obvious, students fail to notice them.

Match the pedigree to the correct inheritance pattern (5 pt)