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: when x is multiplied by 3, the result is 10 more than the result of subtracting x from 26. what is the value of x ?
Options: a. - 4, b. 9, c. 11, d. 13, e. 22
[A]: b


[Q]: Problem: if the range q of the 6 numbers 4, 314, 710 and x is 12, what is the difference between the greatest possible value of x and least possible value of x ?
Options: a. 0, b. 2, c. 12, d. 13, e. 15
[A]: d


[Q]: Problem: a rectangular swimming pool is 20 feet by 18 feet. a deck that has uniform width surrounds the pool. the total area of the pool and deck is 624 square feet. what is the width of the deck ?
Options: a. 2, b. 3, c. 4, d. 5, e. 6
[A]:
b