Which of the Following Instances Indicates the Presence of Competitiveness

Which of the following instances indicates the presence of competitiveness?

A) When a consumer attempts to display superiority over others by openly flaunting exclusive products, especially publicly-visible products
B) When consumers engage in bargaining while making purchases
C) When consumers reduce their material consumption
D) When consumers exhibit restraint while purchasing items other than basic provisions
E) When consumers redeem grocery coupons at retail outlets