单选题

An investor notices that the price of an American call option is above the price of a European call option with otherwise identical features. What is the most likely reason for this difference?

A、 The options are deep-in-the-money.
B、 The underlying will go ex-dividend.
C、 The options are close to expiration.

【正确答案】 B

【答案解析】

American call prices can differ from European call prices only if there are cash flows on the underlying.