instruction:
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.
question:
Question: Evaluate combination
100C98=100!/(98)!(2)!

 Option A: 4950

 Option B: 1510

 Option C: 4170

 Option D: 3170

 Option E: None of these
answer:
Option A


question:
Question: a light flashes every 30 seconds, how many times will it flash in ? of an hour?

 Option A: 550

 Option B: 600

 Option C: 650

 Option D: 700

 Option E: 120
answer:
Option E


question:
Question: What is the ratio of 6/7 to the product 3*(7/3)?

 Option A: 3:7

 Option B: 1:3

 Option C: 3:21

 Option D: 6:49

 Option E: 3:49
answer:

Option D