The correct option is 2 only because the Command Area Development Programme (CADP) was indeed launched in 1974-75 with the primary goal of improving water-use efficiency in irrigated agriculture, thus enhancing productivity. In contrast, the Accelerated Irrigation Benefits Programme (AIBP), initiated in 1996-97, primarily focused on increasing irrigation coverage through infrastructure development rather than providing direct loan assistance to farmers. Understanding these initiatives is crucial as they reflect India's approach to agricultural development and water management, showcasing the government's efforts to enhance irrigation and optimize resource utilization.