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: (3x + 1) (2x - 5) = ax^2 + kx + n . What is the value of a - n + k ?

Option A: 5

Option B: 8

Option C: 9

Option D: 14

Option E: 11

A: Option D
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Q: Question: Total dinning bill for 8 people was $211.00.If they add 15% tip and divided the bill evenly ,approximate.What was each persons find share

Option A: $30.14

Option B: 45.14

Option C: 34.66

Option D: 32.29

Option E: 30.33

A: Option E
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Q: Question: The simple interest in 14 months on a certain sum at the rate of 6 per cent per annum is 250 more than the interest on the same sum at the rate of 8 per cent in 8 months. How much amount was borrowed?

Option A: 15000

Option B: 25000

Option C: 7500

Option D: 14500

Option E: None of these

A:
Option A
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