How can credit and debil memo requests be created? Note: There are 3 correct answers to this question.

How can credit and debil memo requests be created? Note: There are 3 correct answers to this question.
A . With reference to a credit or debit memo
B . With reference to a delivery document
C . With reference to an order
D . Without reference to a previous document
E . With reference to a billing document

Answer: C D E