Which of the following relationships is/are not true?
(A). Most probable velocity = \( \sqrt{\frac{2RT}{M}} \)
(B). \( PV = \frac{2}{3}kT \)
(C). Compressibility factor \( Z = \frac{PV}{nRT} \)
(D). Average kinetic energy of gas = \( \frac{1}{2}kT \)
Choose the correct answer from the options given below