Luke and His Wife Coreen Wholesale Cut Flowers to Florists

Luke and his wife Coreen wholesale cut flowers to florists in the Dallas-Fort Worth area. He has been approached by a salesperson for a horticultural firm that wants to sell him a product that extends the beauty of fresh flowers and prevents wilt. Unfortunately, the owner of the horticultural company once was very rude to Luke's wife, and Coreen has never forgiven the man. While Luke may want to buy the product, his wife will act as a(n) :

A) influential adversary
B) actual competitor
C) potential competitor
D) sales bulwark
E) opposing implement