Consider the Partial REAL Model Below: Which of the Following

Consider the partial REAL model below: Which of the following statements is least true?

A) The REAL model is incorrect because it does not include a relationship between the employee and the customer.
B) The "accept payment" table will contain two foreign keys.
C) The "employee" table will require a "department" field.
D) The "customer" table may have a compound primary key.