The dot plots below show the number of minutes it took Sam to get to work each day he worked for May and June. What is the difference of the medians as a multiple of the interquartile range?

A.
The difference of the medians is equal to the interquartile range.
B.
The difference of the medians is 8 times the interquartile range.
C.
The difference of the medians is 2 times the interquartile range.
D.
The difference of the medians is 3 times the interquartile range.