Identify the correct statement(s) from among the following
(i) The constancy of the binding energy per nucleon in the range $30<A<170$ is a consequence of the fact that the nuclear force is short ranged.
(ii) The nuclear force does not depend on the charge of nucleons.
(iii) The nuclear force is repulsive when distance between two nucleons is less than $0.8\mathrm{fm}$