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: Patrick purchased 80 pencils and sold them at a loss equal to the selling price of 16 pencils. The cost of 80 pencils is how many times the selling price of 80 pencils?

Option A: 0.75

Option B: 1.2

Option C: 1.8

Option D: 2.4

Option E: 4.25
[A]: Option B

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

Option A: 2.5 sec

Option B: 2.9 sec

Option C: 3.5 sec

Option D: 7.5 sec

Option E: 5 sec
[A]: Option E

[Q]: Question: A chair is bought for Rs.200/- and sold at Rs.320/- find gain or loss percentage

Option A: 75% loss

Option B: 20% gain

Option C: 60% gain

Option D: 30% gain

Option E: 35% gain
[A]:
Option C