All of the Following Are Business-Critical Integrity Constraints,except

Multiple Choice

All of the following are business-critical integrity constraints,except

A) System will not allow an entry for an order for a nonexistent customer
B) System will not allow returns of fresh produce after 15 days past delivery
C) System will not allow shipping a product to a customer who does not have a valid address
D) Systems will not allow shipping of a nonexistent product to a customer