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.

Example Input: Question: A warehouse is labeling computer inventory with 3-digit codes. Each code is to consist of four digits between the numbers 0 and 9. The manager is debating whether to allow any 3-digit codes to have leading zero's before a non-zero number is used. If not allowed, then numbers like0025cannot be used.
The manager wants to measure the magnitude of the number of 3-digit code possibilities that are lost if he disallows the use of leading zero's. How many such codes would be lost?

 Option A: 981

 Option B: 1000

 Option C: 1011

 Option D: 1101

 Option E: 100
Example Output: Option E

Example Input: Question: A train 175 m long pass a telegraph pole in 5 seconds. Find the speed of the train

 Option A: 66 km/hr

 Option B: 68.4 km/hr

 Option C: 72 km/hr

 Option D: 126 km/hr

 Option E: None
Example Output: Option D

Example Input: Question: The sum of the present ages of two persons A and B is 60. If the age of A is twice that of B, find the sum of their ages 7 years hence?

 Option A: 58

 Option B: 74

 Option C: 62

 Option D: 70

 Option E: 74
Example Output:
Option B

