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: what is the perimeter of a square field whose diagonal is 8 â ˆ š 2 ?
Options: a. 64 m, b. 32 m, c. 30 m, d. 16 m, e. 18 m

A: b
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Q: Problem: calculate the share of z, if rs. 3720 is divided among x, y and z in the ratio 7: 8: 11 ?
Options: a. 1564.1, b. 1214.1, c. 1574.1, d. 1271.1, e. 1044.1

A: c
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Q: Problem: what will be the cost of building a fence around a square plot with area equal to 289 square feet, if the price per foot of building the fence is rs. 58 ?
Options: a. 3944, b. 3932, c. 3929, d. 3926, e. 3902

A:
a
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