The formula for the volume of a pyramid is $V=\frac{1}{3} B h$. Which of the following equations is equivalent to the given formula?

A$B=\frac{3 V}{h}$

B$B=\frac{3 h}{V}$

C$B=\frac{V-\frac{1}{3}}{h}$

D$B=\frac{V+\frac{1}{3}}{h}$