Review the following diagram. Which of the following statements are correct? A. Each product category may be managed by one employee. B. Credit purchases are not allowed. C. A check can be written to pay multiple purchases. D. Product ID will be posted as a foreign key in the Purchases table. Product Categories 11 Products Purchases Employees 0... 1.1 1. 1.1 0.. Cash Cash Disbursements Suppliers 0.. 0. 1..1 Supplier Categories