A retailer maintains a database with four tables: Customers,…

A retailer maintains a database with four tables: Customers, DealershipInfo, SaleTransactions, and ProductList. The Entity Relationship Model (ERM) below illustrates the primary and foreign key relationships among these tables. In the diagram, a gold key indicates a table’s primary key, while a silver key denotes a foreign key. Customers can purchase multiple products, and each product can be bought by multiple customers. The SalesTransactions table serves as a ________  table that links these entities in a many-to-many relationship. Fill in the blank.