Which of the Following Is Correct with Regard to the Issue

Multiple Choice

Which of the following is correct with regard to the issue of fixed versus dynamic pricing?

A) When launching new products, start-up firms generally use dynamic pricing until they get a better understanding of the market.
B) In the digital marketplace, dynamic pricing is the norm.
C) Amazon.com uses fixed pricing as its pricing strategy for its millions of retail items.
D) The reverse auction is one type of fixed pricing.
E) All of these are correct.