Which of the Following Best Illustrates the Double Coincidence of Wants

Multiple Choice

Which of the following best illustrates the double coincidence of wants?

A) Both Tom and Jerry would like to purchase the same good.
B) Tom has something he's willing to trade with Jerry;Jerry has something he's not willing to trade with Tom.
C) Tom and Jerry have very similar tastes;hence,Tom's wants coincide with Jerry's.
D) Tom has something he's willing to trade with Jerry,who wants it;Jerry has something he's willing to trade with Tom,who wants it.
E) Tom has something Jerry wants;Jerry has nothing Tom wants.