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.

Example Input: Problem: a gardener grows cabbages in her garden that is in the shape of a square. each cabbage takes 1 square feet of area in her garden. this year, she has increased her output by 193 cabbages as compared to last year. the shape of the area used for growing the cabbages has remained a square in both these years. how many cabbages did she produce this year ?
Options: a. 8,208, b. 9,409, c. 11,424, d. 12,586, e. can not be determined
Example Output: b

Example Input: Problem: in what time will a train 50 m long cross an electric pole, it its speed be 360 km / hr ?
Options: a. 0.25, b. 0.5, c. 1.5, d. 2.5, e. 3.5
Example Output: b

Example Input: Problem: ravi and sunil are partners in a business. ravi invests rs. 12,000 for 4 months and sunil invested rs. 10000 for 5 months then after one year ratio of their profits will be
Options: a. 1: 3, b. 2: 3, c. 24: 25, d. 20: 22, e. 3: 4
Example Output:
c