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: A shopkeeper sold an book offering a discount of 5% and earned a profit of 30%. What would have been the percentage of profit earned if no discount was offered?

 Option A: 140

 Option B: 120

 Option C: 130

 Option D: 136.8

 Option E: 150

Output: Option D


Input: Consider Input: Question: A father was as old as his son's present at the time of your birth. If the father's age is 44 years now, the son's age 5years back was?

 Option A: 10 years

 Option B: 12 years

 Option C: 14 years

 Option D: 16 years

 Option E: 17 years

Output: Option E


Input: Consider Input: Question: Andrew travelling to 7 cities. Gasoline prices varied from city to city.
$1.75, $1.61, $1.79, $2.11, $1.96, $2.09, $1.83. What is the median gasoline price?

 Option A: $1

 Option B: $1.83

 Option C: $1.92

 Option D: $2.13

 Option E: $2.15


Output: Option B