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: A tank holds x gallons of a saltwater solution that is 20% salt by volume. One Fourth of the water is evaporated, leaving all of the salt. When 5 Gallons of water and 10 gallons of salt are added, the resulting mixture is 33 1/3 % salt by volume. What is the value of x?

Option A: 37.5

Option B: 75

Option C: 100

Option D: 150

Option E: 175

Ex Output:
Option B

Ex Input:
Question: Five players forms a team joins in a shooting game. The best shooter scored 78 points. If he had scored 95 points, the average score for the team would have been 85. The number of points, the team scored, was

Option A: 288

Option B: 345

Option C: 408

Option D: 672

Option E: 578

Ex Output:
Option C

Ex Input:
Question: Two trains 140 m and 160 m long run at the speed of 60 km/hr and 40 km/hr respectively in opposite directions on parallel tracks. The time which they take to cross each other is?

Option A: 10.7

Option B: 10.9

Option C: 10.2

Option D: 10.8

Option E: 18.8

Ex Output:
Option D