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: If f(y)=y^2 and y is a positive integer, which of the following CANNOT be the value of f(f(y))?

 Option A: 1

 Option B: 144

 Option C: 81

 Option D: 16

 Option E: 256

Ex Output:
Option B


Ex Input:
Question: Raman buys an old scooter for Rs. 5000 and spends Rs. 1000 on its repairs. If he sells the scooter for Rs. 7200, his gain percent is :

 Option A: 20%

 Option B: 12%

 Option C: 10%

 Option D: 5%

 Option E: None of these

Ex Output:
Option A


Ex Input:
Question: For any integer p, *p is equal to the product of all the integers between 1 and p, inclusive. How many prime numbers are there between *7 + 3 and *7 + 7, inclusive?

 Option A: None

 Option B: One

 Option C: Two

 Option D: Three

 Option E: Four

Ex Output:

Option A