How are the graphs of the functions f(x) = √16ˣ and g(x) = ³√(64)ˣ related?
A. The functions f(x) and g(x) are equivalent.
B. The function g(x) increases at a faster rate.
C. The function g(x) has a greater initial value.
D. The function g(x) decreases at a faster rate.