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.

Q: Question: There are 14 stations between Hyderabad and Bangalore. How many second class tickets have to be printed, so that a passenger can travel from any station to any other station?

Option A: 288

Option B: 267

Option C: 261

Option D: 211

Option E: 240

A: Option E
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Q: Question: If a committee of 2 people is to be selected from among 5 married couples so that the committee does not include two people who are married to each other, how many such committees are possible?

Option A: 20

Option B: 40

Option C: 50

Option D: 80

Option E: 120

A: Option B
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Q: Question: 10 3/4 + 7 2/17 - 9 1/15=?

Option A: 7 719/1020

Option B: 9 817/1020

Option C: 9 719/1020

Option D: 8 817/1020

Option E: None of them

A:
Option D
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