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: If x < y < 0, which of the following must be true?

Option A: 2xy/3x is a negative integer

Option B: x-y is a positive integer

Option C: (-x

Option D: x/y is a negative integer

Option E: 2x+y is a negative integer

Ex Output:
Option C

Ex Input:
Question: The difference between the place values of 7 and 3 in the number 527435 is

Option A: 4

Option B: 5

Option C: 45

Option D: 6970

Option E: None

Ex Output:
Option D

Ex Input:
Question: There are 45 apples and 40 oranges in stock and packs are to be filled with equal number of same type of fruits such that minimum number of packs are used. There are 20 places on the shelf to display fruits so what will be the number of empty places to display fruits?

Option A: 3

Option B: 4

Option C: 5

Option D: 6

Option E: 7

Ex Output:
Option A