A thermodynamic system undergoes a cyclic process \(ABCDA\) as shown in Fig. The work done by the system in the cycle is:
| 1. | \( P_0 V_0 \) | 2. | \( 2 P_0 V_0 \) |
| 3. | \(\dfrac{P_0 V_0}{2} \) | 4. | zero |
| 1. | \(2 {PV}\) | 2. | \(4{PV}\) |
| 3. | \(\dfrac{1}{2}{PV}\) | 4. | \(PV\) |