Which one of the statements about margin requirements on option positions is correct?

Multiple Choice

A) A buyer of a put or call option does not have to post margin.

B) If the required margin exceeds the posted margin, the option buyer will receive a margin call.

C) The margin required will be higher if the option is in the money.

D) Even if the writer of a call option owns the stock, the writer will have to meet the margin requirement in cash.