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
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Q: Question: The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 4% per annum is Re. 1. The sum (in Rs.) is?

 Option A: 625

 Option B: 827

 Option C: 657

 Option D: 726

 Option E: 634

A: Option A
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Q: Question: The area of a parallelogram is 128sq m and its altitude is twice the corresponding base. Then the length of the base is?

 Option A: 8

 Option B: 9

 Option C: 6

 Option D: 5

 Option E: 1

A:
Option A
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