Two sealed containers, Container A and Container B, are kept in thermal equilibrium at temperature \(T_0\). Container A contains helium gas (molar mass \(4 \text{ g/mol}\)), and Container B contains argon gas (molar mass \(40 \text{ g/mol}\)). Which of the following correctly compares the average translational kinetic energy \(K_{\text{avg}}\) per atom and the root-mean-square speed \(v_{\text{rms}}\) of the helium atoms to those of the argon atoms?