Task: Question Answering
Input (English): Question: A customer using a certain telephone calling plan pays a fee of $25 per month, and then receives a discount of 40% on the regular charge for all calls made to country X. If calls to country X are regularly charged at $1.60 per minute for the first 3 minutes, and $0.80 per minute for each minute thereafter, what is the maximum the customer could have saved over regular prices if he was charged for 1 hour of calls made to country X in a certain month?

 Option A: $8.75

 Option B: $12

 Option C: $13.40

 Option D: $17.40

 Option E: $24.40
Output (English): Option C