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: The compound ratio of 1:3, 3:2 and 4:5?

Option A: 1:9

Option B: 1:7

Option C: 1:2

Option D: 2:5

Option E: 1:4

A: Option D
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Q: Question: A lady bought five books namely A,B,C,D,E to distribute her 7 friends. How many ways she can distribute books?

Option A: 7^3

Option B: 7^4

Option C: 7^5

Option D: 7^6

Option E: 7^2

A: Option C
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Q: Question: Oak trees line both sides of a street for a length of 6/8 of a kilometer. If there is 12 meters of space between the trees, and each tree is 1 meter wide, how many trees are there along the street?

Option A: a

Option B: b

Option C: c

Option D: d

Option E: e

A:
Option A
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