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: If |x^2 − 20| = x, which of the following could be the value of x?

 Option A: -5

 Option B: -4

 Option C: 1

 Option D: 4

 Option E: 10

A: Option D
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Q: Question: A, B and C started a business by investing Rs. 1,20,000, Rs. 1,35,000 and ,Rs.1,50,000 respectively. Find the share of each, out of an annual profit of Rs. 56,700.

 Option A: 16800;18900;21000

 Option B: 17800;19800;22500

 Option C: 15500;17600;20500

 Option D: 16400;17200;18900

 Option E: None of them

A: Option A
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Q: Question: The S.I. on a certain sum of money for 2 years at 6% per annum is half the C.I. on Rs. 4000 for 2 years at 10% per annum. The sum placed on S.I. is?

 Option A: 2197

 Option B: 1267

 Option C: 3500

 Option D: 2267

 Option E: 1262

A:
Option C
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