The pressure ( P ) versus temperature ( T in Kelvin) graph for a...

The pressure ($P$) versus temperature ($T$ in Kelvin) graph for a fixed mass of an ideal gas shows two straight lines passing through the origin, corresponding to two different constant volumes $V_1$ and $V_2$. The line for $V_1$ is steeper than the line for $V_2$. Two states of the gas, $A$ and $B$, are marked on the lines for $V_1$ and $V_2$ respectively, such that both states have the exact same pressure $P_0$. If $v_A$ and $v_B$ are the root mean square (rms) speeds of the gas molecules in states $A$ and $B$ respectively, which of the following is correct?