The Distinction Between Extortion and Robbery Is That

The distinction between extortion and robbery is that

A) robbery is committed in the same essential way as blackmail,whereas extortion is committed by a threat to do harm in the future.
B) extortion is committed by a threat to do immediate bodily harm,whereas robbery is committed by a forceful or frightening threat to do harm in the future.
C) extortion is committed in the same essential way as blackmail,whereas robbery is committed by a forceful or frightening threat to do harm in the future.
D) robbery is committed by a threat to do immediate bodily harm,whereas extortion is committed by a threat to do harm in the future.