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: Total dinning bill for 8 people was $211.00.If they add 15% tip and divided the bill evenly ,approximate.What was each persons find share

 Option A: $30.14

 Option B: 45.14

 Option C: 34.66

 Option D: 32.29

 Option E: 30.33

Ex Output:
Option E


Ex Input:
Question: A is twice as fast as B. If B alone can do a piece of work in 18 days, in what time can A and B together complete the work?

 Option A: 10

 Option B: 16

 Option C: 18

 Option D: 6

 Option E: 12

Ex Output:
Option D


Ex Input:
Question: How many different arrangements of letters are possible if three letters are chosen from the letters A through H and the letters E and A must be among the letters selected?

 Option A: 30

 Option B: 33

 Option C: 36

 Option D: 39

 Option E: 42

Ex Output:

Option C