Which of the following activities can you perform when you release a purchase order?

Your company the classic procedure for purchase orders.

Which of the following activities can you perform when you release a purchase order? Note: There are 2 correct answers to this question.
A . Delete the purchase order completely
B . Enter the release code assigned to your user
C . Reverse an already implemented release or rejection.
D . Change the value of the purchase order item

Answer: B,C