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 least number which when divided by 5, 6, 7 and 8 leaves a remainder 3, but when divided by 9 leaves no remainder, is :
Options: a. 2377, b. 1683, c. 2677, d. 9972, e. 1611
[A]: b


[Q]: Problem: find the cost of fencing around a circular field of diameter 32 m at the rate of rs. 2 a meter ?
Options: a. 201, b. 132, c. 772, d. 592, e. 261
[A]: a


[Q]: Problem: if 2 tic equals 3 tacs and 2 tacs equal 7 tocs, what is the ratio of one tic to one toc ?
Options: a. 15 / 2, b. 6 / 5, c. 21 / 4, d. 3 / 10, e. 1 / 15
[A]:
c