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.

Input: Consider Input: Question: Which of the following CANNOT be weighed using a balance scale and these unit weights: 1, 4, 7, and 10

 Option A: 13

 Option B: 15

 Option C: 17

 Option D: 19

 Option E: 21

Output: Option A


Input: Consider Input: Question: An article is bought for Rs.675 and sold for Rs.1215, find the gain percent?

 Option A: 33 1/9%

 Option B: 33 8/3%

 Option C: 33 1/3%

 Option D: 33 2/3%

 Option E: 80%

Output: Option E


Input: Consider Input: Question: John weighs twice as much as Susan. Susan's weight is 60% of Sam's weight. Mark weighs 50% of Lynn's weight. Lynn weighs 170% of John's weight. Which of these 5 people weighs the least?

 Option A: John

 Option B: Susan

 Option C: Sam

 Option D: Mark

 Option E: Lynn


Output: Option B