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: If 6 (A's capital) = 8 (B's capital) = 18 (C's capital). Then the ratio of their capitals is?

 Option A: 12:15:16

 Option B: 12:15:4

 Option C: 12:9:4

 Option D: 20:15:11

 Option E: 20:15:19
Example Output: Option C

Example Input: Question: A car during its journey travels 30 minutes at a speed of 60 kmph, another 45 minutes at a speed of 80 kmph, and 1 hours at a speed of 70 kmph.The average speed of the car is

 Option A: 63.07 kmph

 Option B: 64 kmph

 Option C: 75 kmph

 Option D: 80 kmph

 Option E: None of these
Example Output: Option D

Example Input: Question: A jogger running at 9 km/hr along side a railway track is 280 m ahead of the engine of a 120 m long train running at 45 km/hr in the same direction. In how much time will the train pass the jogger?

 Option A: 67 sec

 Option B: 89 sec

 Option C: 36 sec

 Option D: 87 sec

 Option E: 40 sec
Example Output:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Option E

