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: A man can row a boat at 20 kmph in still water. If the speed of the stream is 6 kmph, what is the time taken to row a distance of 66 km downstream?

 Option A: 30/83 hours

 Option B: 33/13 hours

 Option C: 31/13 hours

 Option D: 30/13 hours

 Option E: 30/14 hours
Example Output: Option B

Example Input: Question: A student missed 6% of the questions on a test. If the student missed 12 questions, how many questions were on the test?

 Option A: 100

 Option B: 150

 Option C: 200

 Option D: 250

 Option E: 300
Example Output: Option C

Example Input: Question: A shop sells chocolates at re.1 each. U can exchange 3 wrappers for 1 chocolate. If u have Rs.100, how many chocolates can you totally get?

 Option A: 147

 Option B: 148

 Option C: 149

 Option D: 145

 Option E: 141
Example Output:
Option C