The heights of two groups of students in different grades are shown in the box-and-whisker plot below.


Which statement correctly compares the two data sets?

A.
The range of group A is less than the range of group B.

B.
The median of group A is less than the median of group B.

C.
The interquartile range of group A and group B is the same.

D.
The first quartile of group A is greater than the first quartile of group B.