The density of a metal at normal pressure is $$\rho$$. Its density when it is subjected to an excess pressure p is $$\rho'$$ If B is Bulk modulus of the metal, the ratio of $$\frac{\rho'}{\rho}$$ is

A

$$1 + \frac{B}{p}$$

B

$$\frac{1}{1 - \frac{p}{B}}$$

C

$$1 + \frac{p}{B}$$

D

$$\frac{1}{1 + \frac{p}{B}}$$