‘n’ moles of an ideal gas undergoes a process $A \to B$ as shown in the figure. The maximum temperature of the gas during the process will be :

Question

$\begin{array}{1 1} (1) \large\frac{9 P_0V_0}{4nR} \\ (2) \large\frac{3 P_0V_0}{2nR} \\ (3) \large\frac{9 P_0V_0}{4nR} \\ (4) \large\frac{9 P_0V_0}{nR} \end{array} $