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 train running at a speed of 36 kmph crosses an electric pole in 12 seconds. In how much time will it cross a 370 m long platform?

Option A: 37 min

Option B: 55 min

Option C: 47 min

Option D: 67 min

Option E: 49 min
Example Output: Option E

Example Input: Question: Two alloys A and B are composed of two basic elements. The ratios of the compositions of the two basic elements in the two alloys are 5 : 3 and 1 : 2, respectively. A new alloy X is formed by mixing the two alloys A and B in the ratio 4 : 3. What is the ratio of the composition of the two basic elements in alloy X ?

Option A: 1 : 1

Option B: 2 : 3

Option C: 5 : 2

Option D: 4 : 3

Option E: 7 : 9
Example Output: Option A

Example Input: Question: If the length of a certain rectangle is decreased by 4 cm and the width is increased by 3 cm, a square with the same area as the original rectangle would result. Find the perimeter of the original rectangle.

Option A: 50 cm

Option B: 70 cm

Option C: 60 cm

Option D: 30 cm

Option E: 40 cm
Example Output:
Option A