Because You Want to Lose Weight and Tone Your Muscles

Because you want to lose weight and tone your muscles, you pay $200 for a six-month membership in a local gymnasium. You now have the right to exercise and use the gym equipment anytime the facility is open. This transaction is an example of a(n) :

A) exchange.
B) resourceless transaction.
C) self-sufficient transaction.
D) coercive transaction.
E) barter transaction.