The Buyer of an Option Contract

The buyer of an option contract:

A) Receives the option premium in exchange for an obligation to either buy or sell an underlying asset.
B) Pays an option premium in exchange for a right to buy or sell an underlying asset during a specified period of time.
C) Pays the strike price at the time the option is purchased and in exchange receives the right to exercise the option at a time of their choosing.
D) Receives the option premium in exchange for guaranteeing the purchase or sale of an underlying asset if called upon to do so.
E) Pays the option premium in exchange for receiving the strike price at a later date.