Why Is the Demand for Most Services-Such as Popular Restaurants-Extremely

Why is the demand for most services-such as popular restaurants-extremely time-and-place dependent?

A) Because popular services typically lack sufficient capacity.
B) Because services cannot be stored for future use.
C) Because customers must be present for service to be delivered.
D) Because service customers are typically unsure of their needs.
E) Because competing services force customers to make tradeoffs between quality and time.