The specific heats, `C_(P)` and `C_(V)` of a gas of diatomic molecules, A are given (in units of `Jmol^(-1) K^(-1)`) by 29 and 22 , respectively. Another gas of diatomic molecules , B has the corresponding values 30 and 21. if they are treated as ideal gases, then :

Options

A. A has one vibrational degree of freedom and B has two vibrational degrees of freedom
B. A has one vibrational degree of freedom and B has zero vibrational degree of freedom
C. A and B both have one vibrational degree of freedom
D. A and B both have two vibrational degrees of freedom