NO.PZ2020021203000081
问题如下：
How is a covered call created? How can an equivalent position be created using a put?
选项：
解释：
A covered call is created from a long position in an asset and a short position in a call. Equation S - c = PV(K) - p shows that it is equivalent to a short put position together with a cash position that equals the present value of the strike price.
请问这个执行价格K 是什么的执行价格，在这个COVERED PARITY 公式中，不太明白，是啥的执行价格。
