For adiabatic expansion of an ideal gas

For an ideal gas, consider only $\mathrm{P}-\mathrm{V}$ work in going from an initial state $\mathrm{X}$ to the final state $\mathrm{Z}$. The final state $\mathrm{Z}$ can be reached by either of the two paths shown in the figure. Which of the following choice(s) is (are) correct ? [take $∆\mathrm{S}$ as change in entropy and $\mathrm{W}$ as work done].

The reversible expansion of an ideal gas under adiabatic and isothermal conditions is shown in the figure. Which of the following statement(s) is (are) correct?