Which of the following features are shared by futures contracts and options? 1. They have specified expiration dates. II. Their value is derived from changes in the value of some other asset. III. Unprofitable futures or options can simply be allowed to expire unexercised. IV. They obligate the buyer and seller to exchange cash for the underlying asset on the expiration date. A. I, II and III only B. II and III only C. I and IV only D. I and II only