NO.PZ2020011901000073
问题如下：
What is the difference between selling a call option and buying a put option?
解释：
When a trader sells a call option, the trader must sell the asset when the asset’s price is greater than the strike price. When a trader buys a put option, the trader has the option to sell the asset when the asset price is less than the strike price.
为什么答案是卖了一个看跌的期权啊