Let $A = f(r)$ be the area of a circle with radius $r$ and $r = h(t)$ be the radius of the circle at time $t$.

Which of the following statements correctly provides a practical interpretation of the composite function $f(h(t))$ ? Select all that apply if more than one is appropriate.

A. At what time $t$ the radius will be $r = h(t)$.
B. The length of the radius of a circle with area $A = f(r)$ at time $t$.
C. The length of the radius at time $t$.
D. The area of the circle which at time $t$ has radius $h(t)$ .
E. The area of the circle at time $t$.
F. At what time $t$ the area will be $A = f(r)$.
G. None of the above