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: The length and breadth of a rectangular floor are 16.25 metre and 12.75 metre respectively. Find how many minimum number of square tiles would be required to cover it completely?

Option A: 375

Option B: 2570

Option C: 2800

Option D: 3315

Option E: None of these

Ex Output:
Option D

Ex Input:
Question: The amount of an investment will double in approximately 70/ p years, where p is the percent interest, compounded annually. If Thelma invests $ 60,000 in a long-term CD that pays 5 percent interest, compounded annually, what will be the approximate total value of the investment when Thelma is ready to retire 42 years later?

Option A: $ 280,000

Option B: $ 320,000

Option C: $ 360,000

Option D: $ 480,000

Option E: $ 540,000

Ex Output:
Option D

Ex Input:
Question: If 1/2 of the air in a tank is removed with each stroke of a vacuum pump, what fraction of the original amount of air has been removed after 5 strokes ?

Option A: 31/32

Option B: 7/8

Option C: 1/4

Option D: 1/8

Option E: 1/16

Ex Output:
Option A