The number of leaves that fall off a tree n days after day 1 is given by the function f (n) = 3(2)^n What does the value 3 mean in this function?
A. On the first day, 3 leaves fall.
B. On the second day, 3 leaves fall.
C. The number of leaves that fall on a given day is 3 times the number of leaves that fell on the first day.
D. The number of leaves that fall on a given day is 3 times the number of leaves that fell on the previous day.