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.

Input: Consider Input: Problem: 3 candidates in an election and received 6136, 7636 and 11628 votes respectively. what % of the total votes did the winning candidate got in that election ?
Options: a. 46 %, b. 49 %, c. 57 %, d. 59 %, e. 61 %

Output: a

Input: Consider Input: Problem: mary works in a restaurant a maximum of 70 hours. for the first 20 hours, she is paid $ 8 per hour. for each overtime hour, she is paid at a rate which is 25 % higher than her regular rate. how much mary can earn in a week ?
Options: a. 600, b. 620, c. 660, d. 320, e. 400

Output: c

Input: Consider Input: Problem: the ratio between the length and the breadth of a rectangular park is 2: 3 if a man cycling along the boundary of the park at the speed of 10 km / hr completes one round in 18 min, then the area of the park ( in sq. m ) is ?
Options: a. 3000 m, b. 9000 m, c. 540000 m, d. 10000 m, e. 54000 m
Output: c