American and European call options

I checked the answer on this question from Book 6 and I still don’t get it - what is the right answer and why? What are the minimum values of an American-style and European-style 3-month call option with a strike price of $80 on a non-dividend-paying stock trading at $86 if the risk-free rate is 3%? ----American------European A.—$6.00 ----------$6.00 B.—$6.00 ----------$5.96 C.—$6.59 ----------$6.00 D.—$6.59 ----------$6.59

Done yesterday…

My apologies, I didn’t see this buried in the posts. Thanks!