题目：
An investor bought a 40 put on a stock trading at 43 for a premium of $1. What is the maximum gain on the put and the value of the put at expiration if the stock price is $41 Maximum Gain on Put Value of the Put at Expiration ①A. $39 $0 ②B. $4O $2 ③C. unlimited$1
A．
| A. ① |
B．
| B. ② |
C．
| C. ③ |
答案：
参考答案：A
解析：The maximum gain on a long put is the strike price minus the premium, 40 - 1 = $39. The value at expiration is zero because the put is out-of-the-money.
