Which One of the Following Situations Will Produce the Highest

Which one of the following situations will produce the highest call price, all else constant? Assume the options are all in the money.

A) $20 strike price; 45 days to option expiration
B) $20 strike price; 60 days to option expiration
C) $25 strike price; 45 days to option expiration
D) $25 strike price; 60 days to option expiration
E) Insufficient information is provided to answer this question.