ABC RETAILER Observe the ER Diagram for the ABC Retailer

ABC RETAILER
Observe the ER diagram for the ABC Retailer:

This ER diagram will be used for the following questions citing ABC Retailer ER Diagram.
-Which of the following is true according to the ABC Retailer ER diagram?

A) We cannot keep track of promotions that are not associated with multiple products
B) We must keep track of promotions that are not associated with any products
C) We can keep track of promotions that are not associated with any products
D) We cannot keep track of promotions that are not associated with any products