Which of the Following Processes Are Reversible in the Thermodynamic $\degree$

Which of the following processes are reversible in the thermodynamic sense? I.Iron in the open air rusts.
II.NaCl is dissolved in water and then recovered by the evaporation of the water.
III.The ice in a mixture of ice and water at 0 $\degree$ C and 1 atm melts.

A) I only
B) II only
C) III only
D) II and III only
E) I, II, and III are all reversible.