A major health mission carried in 1996 was

The question asks about a major health mission carried out in 1996.(A) War against leprosy: National Leprosy Eradication Programme existed, but 'war' isn't specific terminology for a major 1996 mission.(B) Small-pox eradication: India was declared small-pox free in 1977, and global eradication was certified in 1980.(C) Pulse Polio Immunization: The Pulse Polio programme was launched in India in 1995 with the objective of achieving 100% coverage. 1996 saw massive nationwide campaigns involving simultaneous immunization of children on specific days, making it a very major and visible health mission during that year.(D) Popularisation of oral rehydration therapy: ORT promotion was ongoing through various health programs but wasn't typically termed a single major 'mission' in 1996 like Pulse Polio.Therefore, Pulse Polio Immunization was the most prominent large-scale health mission active in 1996.