Which method listed below is the most accurate method to obt…

Which method listed below is the most accurate method to obtain the head circumference of a child:                                                                                                                                             

1. Some Roman Emperors in history were unfaithful to their w…

1. Some Roman Emperors in history were unfaithful to their wives. (This premise is really true. And notice that it says “Some” Roman Emperors,  not “all.”) 2. Claudius was a Roman Emperor in history. (This premise really is true.) 3. Therefore, Claudius was unfaithful to his wife.  Question: Is the argument deductively sound?