关于备兑看涨期权策略，下列说法错误的是（）。
A.期权出售者在出售期权时获得一笔收入
B.如果期权购买者在到期时行权的话，期权出售者要按照执行价格出售股票
C.如果期权购买者在到期时行权的话，备兑看涨期权策略可以保护投资者免于出售股票
D.投资者使用备兑看涨期权策略，主要目的是通过获得期权费而增加投资收益
参考答案：C
解析：使用备兑看涨期权策略时，期权出售者在出售期权时获得一笔收入，但是如果期权购买者在到期时行权的话，他则要按照执行价格出售股票。
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| Yesterday was my friend Kyra's birthday. He invited me to his birthday party. Another friend, Guy, had offered to take me to the party by car. Well, I was getting dressed 1 Guy rang and said he was ill, so I decided to go by train. Unluckily, while I was talking 2 the phone, the cat walked over my clean shirt, so I had to spend a few minutes finding another one and I was 3 for leaving. As I was walking to the station it started snowing and I got very cold. I just 4 a train and I had to wait at the station for half an hour. When the train finally arrived I was frozen ! I was so cold and tired that during the joumey I 5 and I missed my station. Well, I got off at the next stop and decided to walk 6 to Kyra's. I walked for half an hour and then I realized (意识到) I was 7 . Luckily I found a 8 and telephoned for a taxi. When I finally arrived at Kyra's house it was 9 midnight and people were going home. What a 10 evening! | ||||
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