You are given a math word problem and you are supposed to make use of mathematical concepts like probability, combinatorics, linear equations, sequences/series, or simple operators like addition, subtraction, division, or multiplication to answer the given question. Choose the best option from the 5 given options and report that option.

Example Input: Question: A man took a loan at rate of 12% per annum simple interest. After 3 years he had to pay 4320 interest. The principal amount borrowed by him was.

 Option A: Rs 14000

 Option B: Rs 15000

 Option C: Rs 12000

 Option D: Rs 17000

 Option E: None of these
Example Output: Option C

Example Input: Question: A train covers a distance of 12 km in 10 min. If it takes 10 sec to pass a telegraph post, then the length of the train is?

 Option A: 100

 Option B: 110

 Option C: 200

 Option D: 130

 Option E: 140
Example Output: Option C

Example Input: Question: Out of a classroom of 6 boys and 4 girls the teacher picks a president for the student board, a vice president and a secretary.
What is the probability that only girls will be elected?

 Option A: 1/30

 Option B: 4/30

 Option C: 5/30

 Option D: 7/30

 Option E: 8/30
Example Output:
Option A