A sample containing a fixed quantity of a monatomic ideal gas is taken through the cyclic process \(A \to B \to C \to A\) shown in the \(P\text{-}V\) diagram. Process \(A \to B\) is isobaric at pressure \(P_0\), process \(B \to C\) is isochoric, and process \(C \to A\) is isothermal at temperature \(T_0\).

Which of the following statements correctly analyzes the energy transfers and thermodynamic properties of the gas during this cycle?