The density of a metal at normal pressure is $\rho$. Its density when it is subjected to an excess pressure $p$ is $\rho^{\prime}$. If $B$ is the Bulk modulus of the metal,the ratio $\frac{\rho^{\prime}}{\rho}$ is:
- A$\frac{1}{1 - \frac{p}{B}}$
- B$1 + \frac{p}{B}$
- C$\frac{1}{1 + \frac{p}{B}}$
- D$1 + \frac{B}{p}$
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