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: If k is an integer and 2 < k < 7, for how many different values of k is there a triangle with sides of lengths 2, 6, and k?

Option A: one

Option B: two

Option C: three

Option D: four

Option E: five
Example Output: Option B

Example Input: Question: A boy and a girl appear for an interview against 2 vacant posts in an office. The probability of the boy's selection is 1/5 and that of the girl's selection is 1/3. What is the probability that only 1 of them is selected?

Option A: 1/3

Option B: 2/5

Option C: 3/5

Option D: 4/7

Option E: 5/9
Example Output: Option B

Example Input: Question: Two men started from the same place walk at the rate of 10kmph and 12kmph respectively. What time will they take to be 2 km apart, if they walk in the same direction?

Option A: 5hours

Option B: 6hours

Option C: 1hours

Option D: 10hours

Option E: 12hours
Example Output:
Option C