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 train passes a station platform in 36 sec and a man standing on the platform in 20 sec. If the speed of the train is 54 km/hr. What is the length of the platform?

Option A: 229

Option B: 240

Option C: 288

Option D: 277

Option E: 221
Example Output: Option B

Example Input: Question: A car dealership has 40 cars on the lot, 30% of which are silver. If the dealership receives a new shipment of 80 cars, 40% of which are not silver, what percentage of total number of cars are silver?

Option A: 35%

Option B: 37.5%

Option C: 45%

Option D: 47.5%

Option E: 50%
Example Output: Option E

Example Input: Question: The set X consists of the following terms: {4,44,444,4444,.....}, where the nth term has n 4's in it for example 10th term is 4444444444. What is the hundreds digit of the sum of the first 75 terms of set X?

Option A: 0

Option B: 2

Option C: 4

Option D: 6

Option E: 8
Example Output:
Option C