Given a math problem with context and a question and 5 answer choices, the task is to provide the correct answer choice based on the problem. You must choose one of the given answer choices by letter: a, b, c, d, or e; anything else is invalid.

Ex Input:
Problem: a cricketer whose bowling average is 12.4 runs per wicket takes 5 wickets for 26 runs and there by decreases his average by 0.4. the number age of the family now is :
Options: a. 18, b. 17, c. 76, d. 85, e. 86

Ex Output:
d


Ex Input:
Problem: ray writes a two digit number. he sees that the number exceeds 4 times the sum of its digits by 3. if the number is increased by 18, the result is the same as the number formed by reversing the digits. find the number.
Options: a. 2, b. 5, c. 6, d. 7, e. 8

Ex Output:
b


Ex Input:
Problem: for a certain art exhibit, a museum sold admission tickets to a group of 30 people every 5 minutes from 9: 00 in the morning to 4: 55 in the afternoon, inclusive. the price of a regular admission ticket was $ 10 and the price of a student ticket was $ 6. if on one day 3 times as many regular admission tickets were sold as student tickets, what was the total revenue from ticket sales that day ?
Options: a. $ 24960, b. $ 25920, c. $ 28080, d. $ 28500, e. $ 29160

Ex Output:

b