Which of the Following Observations Is True

 Which of the following observations is true? 

A)  Generic products are known as commodities or unbranded goods.
B)  A generic product is defined as the tangible product along with the whole cluster of services that accompany it.
C)  An extended product is only the physical entity or service that is offered to the buyer.
D)  Executives who are guilty of "marketing myopia" define their company's product too narrowly.