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: 23, 18, 16, 11, 9, 4 ?

 Option A: 3

 Option B: 2

 Option C: 7

 Option D: 5

 Option E: 1

Ex Output:
Option B


Ex Input:
Question: Look at this series: 15, 15, 27, 27, 39, 39, 51, 51, 63, 63, ? ... What number should fill the blank?

 Option A: 51

 Option B: 39

 Option C: 75

 Option D: 15

 Option E: None

Ex Output:
Option C


Ex Input:
Question: In how many ways 8 different tickets can be distributed between Jane and Bill if each is to receive any even number of tickets and all 8 tickets to be distributed.

 Option A: From 2 to 6 inclusive.

 Option B: From 98 to 102 inclusive.

 Option C: From 122 to 126 inclusive.

 Option D: From 128 to 132 inclusive

 Option E: From 196 to 200 inclusive

Ex Output:

Option D