Which best describes the graph of the function f(x) = 4(1.5)^x?

A. The graph passes through the point (0, 4), and for each increase of 1 in the x-values, the y-values increase by 1.5

B. The graph passes through the point (0, 4), and for each increase of 1 in the x-values, the y-values increase by a factor of 1.5.

C. The graph passes through the point (0, 1.5), and for each increase of 1 in the x-values, the y-values increase by 4.

D. The graph passes through the point (0, 1.5), and for each increase of 1 in the x-values, the y-values increase by a factor of 4.