Which of the Following Is True About Sales Promotion

Which of the following is true about sales promotion?

A) It's the promotion manager's responsibility to set sales promotion objectives and policies.
B)
It is not likely to be used in the market maturity stage of the product life cycle.
C) Objectives of sales promotion should be developed after the other promotion decisions have been made.
D) Inside specialists or outside consultants handle the sales promotion activities of firms.