Kelly Addison Is a Designer Clothing Buyer for a Chain

Kelly Addison is a designer clothing buyer for a chain of department stores. She has gone through several negotiation certification programs and is considered an expert negotiator by her peers.
-Using a price-cost comparison on Kelly is unlikely to be effective because:

A) Kelly is buying products to resell immediately,not to get long-term value from
B) Kelly is attempting to increase the margin between price and cost
C) Kelly has no wiggle room on cost,only on price and pricing schedule
D) Kelly cannot negotiate cost as part of her job description
E) Kelly won't know how much the difference between price and cost should be until after the sale goes through