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 company consists of 5 senior and 3 junior staff officers. If a committee is created with 3 senior and 1 junior staff officers, in how many ways can the committee be formed?

 Option A: 12

 Option B: 30

 Option C: 45

 Option D: 80

 Option E: 200

Ex Output:
Option B


Ex Input:
Question: The number which exceeds 16% of it by 42 is?

 Option A: 50

 Option B: 25

 Option C: 52

 Option D: 58

 Option E: 60

Ex Output:
Option A


Ex Input:
Question: A man sold 20 articles for $60 and gained 20%. How many articles should he sell for $90 to incur a loss 20%?

 Option A: 45

 Option B: 36

 Option C: 40

 Option D: 50

 Option E: 48

Ex Output:

Option A