Suppose You Are Short a Call and Long a Put

Multiple Choice

Suppose you are short a call and long a put on the S&P 500 index with the same strike and same maturity. Then, you are essentially holding

A) A long forward on the S&P 500 index
B) A long straddle on the S&P 500 index
C) A short forward on the S&P 500 index
D) A short straddle on the S&P 500 index