For a Call and a Put Written on the Same

For a call and a put written on the same underlying but at at possibly different strike prices,

A) Both call and put options may be in-the-money at the same time.
B) If the call is in-the-money, then the put will be out-of-the-money.
C) If one of the options is out-of-the-money, then the other one is guaranteed to be in-the-money.
D) At least one option will be in-the-money.