Lewis Owns an Exclusive Fashion Accessories Store and Charges All

Lewis owns an exclusive fashion accessories store and charges all consumers a uniform price for a particular product.Recently,however,he has realized that some of his customers are actually willing to pay a higher price for the items he sells,while some others feel that his prices are a little too high.Given this information,which of the following will not affect his ability to discriminate prices between these two consumer segments?

A) His level of monopoly power in this market
B) His total investment in this business
C) His ability to segment the market into high demand and low demand users
D) His ability to prevent arbitrage