Ed spent eight days at the beach. Every day he collected as many seashells as he could find. The following are the seashells he collected:
21, 19, 7, 33, 24, 19, 25, 26.
Which statement is true about the seashells Ed collected?
A The median of the numbers is 24.
B The mean of the numbers is 21.
C The range of the numbers is 26.
D The mode of the numbers is 21.