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.

[EX Q]: Problem: 2,7, 17,3, 11,19, 5,13, __
Options: a. 20, b. 21, c. 22, d. 23, e. 24
[EX A]: d

[EX Q]: Problem: the shopkeeper sale, all of the prices of the items sold were different. if the price of a radio sold at the shopkeeper sale was both the 9 th highest price and the 14 th lowest price among the prices of the items sold, how many items were sold at the shopkeeper sale ?
Options: a. 23, b. 22, c. 32, d. 26, e. 17
[EX A]: b

[EX Q]: Problem: the area of a square is equal to five times the area of a rectangle of dimensions 32 cm * 10 cm. what is the perimeter of the square ?
Options: ['a. 289 cm', 'b. 160 cm', 'c. 829 cm', 'd. 288 cm', 'e. 289 cm']
[EX A]:
b