The correct option is C Milk-deficient nation, world's largest milk producer.
Operation Flood, launched in 1970, was a project of India's National Dairy Development Board (NDDB), which was the world's biggest dairy development program.
It transformed India from a milk-deficient nation into the world's largest milk producer, surpassing the USA in 1998, with about 17 per cent of global output in 201011. In 30 years it doubled milk available per person and made dairy farming Indias largest self-sustainable rural employment generator.
It was launched to help farmers direct their own development, placing control of the resources they create in their own hands. All this was achieved not merely by mass production, but by production by the masses; the process has been called the white revolution.