b为啥对啊

问题如下：

Which one of the followings is least likely the description of the option?

选项：

A.

The maximum loss for the buyer of an call option is the loss of the premium, while the potential gains maybe infinite.

B.

The seller of the option contract could incur substantial losses, but the maximum potential gain is the amount of the premium received for writing the option.

C.

European options can only be exercised on the expiration date.

D.

European options can be exercised at any time up to the expiration date.

解释：

D is correct.

考点：Basic Characteristics of Option Contract

解析：这道题考的是期权相关的概念。ABC三个选项的描述均正确。D选项错在，应该是美式期权可以提前行权，而不是欧式期权。而本题让我们选最不正确的一项，所以选择D。