What are some of the Master Data parameters that you need to maintain to ensure desired results generated by the optimizer?

You are modeling a substitution scenario associated with a promotion .

What are some of the Master Data parameters that you need to maintain to ensure desired results generated by the optimizer? Note: There are 2 correct Answers to this question.
A . Flag ‘Disable Substitution of Location Products
B . Loc-Prod Subst Valid-From Date
C . Promotion duration
D . Location Product Sub Cost Rate

Answer: B,C