Which statements are correct about degrees of freedom?
A. A molecule with n degrees of freedom has $\mathrm{n}^2$ different ways of storing energy.
B. Each degree of freedom is associated with $\frac{1}{2} \mathrm{RT}$ average energy per mole.
C. A monoatomic gas molecule has 1 rotational degree of freedom where as diatomic molecule has 2 rotational degrees of freedom
D. $\mathrm{CH}_4$ has a total to 6 degrees of freedom.