a bamboo shoot is 20 inches tall at day 0 and grows 24 inches everyday. which function(s) shown below can be used to determine height f(n)of the bamboo after n days
I.f(n)=24n+20
II.f(n)=24n+20(n-1)
III.f(n)=f(n-1)+24

A - I only
B- II only
C- I and II
D- I and III