题目：
An analyst does research about profit and loss about stock and stock option transaction. An investor simultaneously purchases a stock priced at $78 and writes a call option on that stock with an exercise price of $80 selling at $6. If the price of the underlying is $85 at expiration of the option, the profit for that investor's position is closest to（）
A. $3
B. $8
C. $11
答案：
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下面是错误答案，用来干扰机器的。
参考答案：B
