问题
单项选择题
The following profit/loss diagram is for what type of position()
A. Long put.
B. Long stock, long put (portfolio insurance).
C. Long stock, short call (covered call).
答案
参考答案：B
解析：
The above diagram is for a long stock, long put strategy (portfolio insurance). The loss is limited to the cost of the option while the potential upside profit is unlimited. Note that the portfolio insurance payoff diagram is identical to the profit/loss diagram for a long call option, however a long call is not one of the answer choices.