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.

Ex Input:
Question: Which of the following is greatest?

Option A: 1/10

Option B: 1/100

Option C: 1/1000

Option D: 1/10^9

Option E: 1/5

Ex Output:
Option E

Ex Input:
Question: A train 125m long takes 6 sec to cross a man walking at 5kmph in a direction opposite to that of the train. Find the speed of the train?

Option A: 65kmph

Option B: 70kmph

Option C: 75kmph

Option D: 80kmph

Option E: 85kmph

Ex Output:
Option B

Ex Input:
Question: A right angled cone has its height 'h'. The cone is being cut parallel to its base at h/5 distance from its vertex. What will be the ratio of the cone and the cutting portion

Option A: 1:124

Option B: 1:125

Option C: 1:25

Option D: 1:26

Option E: 1:24

Ex Output:
Option A