The total number of hours each student spends volunteering in their community is shown in the stem-and-leaf plot.
Hours volunteered
Stem Leaf
1 0 2 3 4 7 8
2 1 2 5 5 6 8
3 0 3 4 4 4
4 1 2 2
Which statement is supported by the data in the stem-and-leaf plot?
A. The number os students who volunteered more than 30 hours is greater than the number of students who volunteered fewer than 30 hours.
B. The most common number of hours volunteered is 25.
C. The most common number of hours volunteered is 42.
D. The number of students who volunteered between 9 and 20 hours is greater than the number of students who volunteered more than 40 hours.
