Barry Owns a Clothing Store in the Mall and Has

Barry owns a clothing store in the mall and has asked two economic consultants to develop models of consumer behavior that he can use to increase sales. Barry should choose the model that:

A) does not include simplifying assumptions.
B) is the most detailed and complex.
C) assumes that consumers apply the cost-benefit principle.
D) predicts that consumers will always prefer Barry's store to the competing stores.