Without another word, the very disappointed customer laid the money on the counter and left the store. He had learned not only that he who squanders his own time is foolish, but that he who wastes the time of others is a thief. Which summarizes the selection?

A. A customer insisted on arguing about the price of a book with the owner, caring little for the interruption he caused.

B. A customer spent a great deal of time browsing in a bookstore and then insisted on seeing Franklin.

C. A customer thought the owner of the bookstore would give him a better price than the clerk.

D. A customer learned that Franklin valued his time more than he valued customer satisfaction.