Based on the extent to which the reactions proceed to reach the state of chemical equilibrium, the reactions may be classifiedI. The reactions that proceed nearly to completion and only negligible concentrations of the reactants are left.II. The reactions in which only small amounts of products are formed and most of the reactants remain unchanged at equilibrium stage.III. The reactions in which the concentrations of the reactants and products are comparable, when the system is in equilibriumWhich of the following is correct option?