Amazon Customers Complained When They Discovered That the Online Retailer

Amazon customers complained when they discovered that the online retailer was offering different customers different prices for the same product. Company officials admitted that the company was trying to see how much it could charge for an item before buyers balked. No matter what the reasoning behind it, Amazon.com was using

A) horizontal price fixing.
B) price discrimination.
C) resale price maintenance.
D) predatory pricing.
E) bait and switch pricing.