A sample of n=7 online students was selected and the distance, in miles, between each student's home and Columbia was recorded. The results were:1, 1, 2, 3, 4, 7, 82The upper quartile is __________ miles.
A. QU = 4
B. QU = 5.5
C. QU = 31
D. QU = 7
E. None of the above