What settings are required on the item master record?

A company manufactures electronic pans They want to begin individually tracking the items at the point when they leave the warehouse and the point that they are delivered to a customer.

What settings are required on the item master record? Note: There are 2 correct answers to this question.
A . Management Method On Every Transaction
B . Management Method: On Release Only
C . Manage Item by Batches
D . Manage Item by: Serial Numbers

Answer: B,D