Which of the following is the correct relation for mach number?

• A. M=V\(\sqrt{\frac{\rho}{\gamma P}}\)
• B. V=\(\frac{a}{M}\)
• C. M=V\(\sqrt{\frac{P}{\gamma\rho}}\)
• D. M=V\(\sqrt{\frac{\gamma p}{\rho}}\)