An options investor sells one stock put option with the following characteristics: Type of option:put option on stock Underlying asset: 100 shares of Bank of America Stock Exercise price :$55 per share Premium : $2.44 per share Expiration date : October By taking a SHORT position in this put option, the investor has()
A. obligated herself to sell 100 shares of Bank of America stock and receive $5500 during the specified time period (expiration date in October).
B. purchased the right to decide whether to sell 100 shares of Bank of America stock and receive $5500 during the specified time period (expiration date in October).
C. obligated herself to purchase 100 shares of Bank of America stock and pay $5500 during the specified time period (expiration date in October).
参考答案：C
解析：
The seller of a put option is obligated to buy the underlying instrument. The exercise price of this option is: 100 × 55 = 5500.