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.

Input: Consider Input: Question: A and B together can do a work in 3 days. If A alone can do it in 12 days. In how many days can B alone do it?

 Option A: 4

 Option B: 6

 Option C: 8

 Option D: 10

 Option E: 25

Output: Option A


Input: Consider Input: Question: How many factors does 36^2 have?

 Option A: 2

 Option B: 8

 Option C: 24

 Option D: 25

 Option E: 26

Output: Option D


Input: Consider Input: Question: A man buys s cycle for $100 and sells it at a loss of 50%. What is the selling price of the cycle?

 Option A: $50

 Option B: $60

 Option C: $70

 Option D: $80

 Option E: $90


Output: Option A