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: A man rows to a place 48 km distant and come back in 14 hours. He finds that he can row 4 km with the stream in the same time as 3 km against the stream. The rate of the stream is:

 Option A: 2 km/hr

 Option B: 1 km/hr

 Option C: 4 km/hr

 Option D: 6 km/hr

 Option E: 5 km/hr

A: Option B
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Q: Question: The number which exceeds 16% of it by 42 is?

 Option A: 50

 Option B: 25

 Option C: 52

 Option D: 58

 Option E: 60

A: Option A
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Q: Question: A man sold an article offering a discount of 5% and earned a profit of 23.5%. What would have been the percentage of profit earned if no discount was offered?

 Option A: 20%

 Option B: 35%

 Option C: 30%

 Option D: 37%

 Option E: 39%

A:
Option C
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