What is the interquartile range (IQR) for this box plot?

A
12

B
18

C
4

D
8

The interquartile range (IQR) is the difference between the upper quartile (Q3) and the lower quartile (Q1) in a box plot.

Based on the information provided, it is not possible to determine the exact values of Q1 and Q3 or the IQR. Therefore, none of the answer choices A, B, C, or D can be determined.