Increased Competition Has Resulted in Buyer's Markets in Most Industries

Increased competition has resulted in buyer's markets in most industries. How has that affected personal selling?

A) a renewed emphasis on adversarial, win-lose approaches to selling
B) buyers preferring to spread out purchasing between more sellers
C) a move toward long-term buyer-seller relationships based on trust and mutual achievement of objectives
D) sellers preferring to do more profitable business with fewer buyers