Water is heated at atmospheric pressure from $40^{\circ}C$ to $80^{\circ}C$ using two different processes. In process $I$, the heating is done by a source at $80^{\circ}C$. In process $II$, the water is first heated from $40^{\circ}C$ to $60^{\circ}C$ by a source at $60^{\circ}C$, and then from $60^{\circ}C$ to $80^{\circ}C$ by another source at  $80^{\circ}C$.

Identify the correct statement.

1. Enthalpy change of water in process $I$ is greater than enthalpy change in process $II$
2. Enthalpy change of water in process $II$ is greater than enthalpy change in process $I$
3. Process $I$ is closer to reversibility
4. Process $II$ is closer to reversibility