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.