The net reproduction rate of 1 can be achieved only if the following rate exceeds 60%-: (A) Total feility rate, (B) Total marital feility rate, (C) Age-specific marital feility rate, (D) Couple protection rate
Answer is D. Park's textbook of preventive and social medicine 23rd edition. * Demographers are of view that demographic goal of NRR=1 can be achieved only if CPR exceeds 60%.