Correct Option: C

Operation Flood in India, a project of the National Dairy Development Board (NDDB) was the world’s biggest dairy development programme which made India, a milk-deficient nation, the largest milk producer in the world, surpassing the USA in 1998, with about 17 percent of global output in 2010–11, which in 30 years doubled the milk available per person, and which made dairy farming India’s largest self-sustainable rural employment generator. The Anand pattern experiment at Amul, a single, cooperative dairy, was the engine behind the success of the programme.