All of the Following Are Aspects of Trader Joe's Customer

All of the following are aspects of Trader Joe's customer experience except which?

A) It has a large and expensive research and development facility.
B) It offers unusual food products not available from other retailers.
C) Its commitment to customer experience has resulted in its rank as a favorite supermarket.
D) It sets low prices by offering its own brands, not national ones.
E) It provides rare employee "engagement" to help customers.