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: By how much is three-fifth of 370 greater than four-seventh of 210 ?

 Option A: 90

 Option B: 100

 Option C: 110

 Option D: 120

 Option E: 102

A: Option E
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Q: Question: If the line L passes through the point (3,n) and (n,3), where n is not equal to 3, which of the following must be true?
1. Line L must passes through the first quadrant
2. Line L does pass the origin
3..The slope of L is negative

 Option A: I only

 Option B: II only

 Option C: III only

 Option D: I and II

 Option E: II and III

A: Option C
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Q: Question: Raman mixed 54 kg of butter at Rs. 150 per kg with 36 kg butter at the rate of Rs. 125 per kg. At what price per kg should he sell the mixture to make a profit of 40% in the transaction?

 Option A: 129

 Option B: 287

 Option C: 196

 Option D: 188

 Option E: 112

A:
Option C
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