TASK DEFINITION: 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.
PROBLEM: Problem: the sector of a circle has radius of 24 cm and central angle 135 o. find its perimeter ?
Options: a. 91.5 cm, b. 11.5 cm, c. 104.6 cm, d. 92.5 cm, e. 99.5 cm

SOLUTION: c

PROBLEM: Problem: what is the value of ( 2 ) ^ - 3 ?
Options: a. 1 / 6, b. 1 / 5, c. 1 / 8, d. 1 / 9, e. 1 / 7

SOLUTION: c

PROBLEM: Problem: the height of a triangle is decreased by 5 % and its base increased by 10 %. its area will
Options: ['a. decrease by 12.5 %', 'b. increase by 12.5 %', 'c. increase by 4.5 %', 'd. increase by 25 %', 'e. none of these']

SOLUTION:
c