The correct option is A 1971
Population Check Act refers to the act which legalised medical termination of pregnancy on certain grounds. Medical Termination of Pregnancy Act, 1971 (MTP Act), was implemented from April 1972. Implemented rules and regulations were again revised in 1975 to eliminate time-consuming procedures for the approval of the place and to make services more readily available. The MTP Act, 1971 preamble states "an Act to provide for the termination of certain pregnancies by registered medical practitioners and for matters connected therewith or incidental thereto".