Marketing research conducted on the popular TV program Seinfeld, starring Jerry Seinfeld, was used to illustrate:

A) how marketing research always correctly identifies a product or service that will be popular in the marketplace
B) when marketing research should not be used
C) when marketing research predicts a failure yet there is success
D) when marketing research predicts a failure and there is a failure
E) why marketing research may not be applied to all fields, such as entertainment

C