Sarah has the following set of numbers.
18, 19, 22, 22, 25, 25, 26, 31, 32, 34, 37, 37, 37
What is the interquartile range for this set of numbers?
A. 12.5
B. 13.5
C. 19.0
D. 26.0
Please DO NOT answer this question if you are going to be foolish or don't understand the question.