Given a math problem with context and a question and 5 answer choices, the task is to provide the correct answer choice based on the problem. You must choose one of the given answer choices by letter: a, b, c, d, or e; anything else is invalid.

Q: Problem: the product of two positive integers is 675 and their difference is 2. what is the bigger number ?
Options: a. 21, b. 23, c. 25, d. 27, e. 29

A: d
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Q: Problem: if x gets 25 % more than y and y gets 20 % more than z, the share of z out of rs. 1110 will be :
Options: a. rs. 300, b. rs. 200, c. rs. 240, d. rs. 350, e. none of these

A: a
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Q: Problem: if circles x and y have the same area and circle x has a circumference of 18 π, half of the radius of circle y is :
Options: a. 16, b. 4.5, c. 4, d. 2, e. 1

A:
b
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