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: The average of first seven prime numbers which are between 30 and 70 is

 Option A: 35.4

 Option B: 42

 Option C: 44.4

 Option D: 57

 Option E: 67
Example Output: Option C

Example Input: Question: Two dice are tossed. The probability that the total score is a prime number is:

 Option A: 5/5

 Option B: 5/9

 Option C: 5/1

 Option D: 5/7

 Option E: 5/12
Example Output: Option E

Example Input: Question: Excluding stoppages, the speed of a train is 45 kmph and including stoppages it is 31 kmph. Of how many minutes does the train stop per hour?

 Option A: 18.6

 Option B: 27

 Option C: 12

 Option D: 121

 Option E: 28
Example Output:
Option A