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: In what time will a train 200 m long cross an electric pole, it its speed be 144 km/hr?

 Option A: 2 sec

 Option B: 2.7 sec

 Option C: 3.5 sec

 Option D: 5 sec

 Option E: 9.5 sec

Output: Option D


Input: Consider Input: Question: If a college has 15 staff for every 700 students, then what is the number of staff for 1400 students?

 Option A: 30

 Option B: 14

 Option C: 12

 Option D: 17

 Option E: 19

Output: Option A


Input: Consider Input: Question: Out of 5 consonants and 3 vowels, how many words of 4 consonants and 2 vowels can be formed?

 Option A: 21000

 Option B: 10500

 Option C: 25200

 Option D: 10800

 Option E: None of these


Output: Option D