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 bag contains 12 red marbles. If someone were to remove 2 marbles from the bag, one at a time, and replace the first marble after it was removed, the probability that neither marble would be red is 49/64. How many marbles are in the bag?

Option A: 24

Option B: 48

Option C: 60

Option D: 96

Option E: 84

Ex Output:
Option D

Ex Input:
Question: Anthony and Michael sit on the six member board of directors for company X. If the board is to be split up into 2 three-person subcommittees, what percent R of all the possible subcommittees that include Michael also include Anthony?

Option A: 20%

Option B: 30%

Option C: 40%

Option D: 50%

Option E: 60%

Ex Output:
Option C

Ex Input:
Question: A father said to his son, "I was as old as you are at the present at the time of your birth". If the father's age is 38 years now, the son's age five years back was:

Option A: 14 years

Option B: 19 years

Option C: 33 years

Option D: 38 years

Option E: 48 years

Ex Output:
Option A