Correct option is C
1. White Revolution: Associated with increased milk production and the development of the dairy industry in India.
(IV - Milk)
2. Brown Revolution: Linked to increased fertilizer production to improve agricultural productivity.
(III - Fertilizer)
3. e-Revolution: Involves the use of digital technology in agriculture to enhance productivity.
(II - Use of digital technology)
4. Rainbow Revolution: Refers to the overall agricultural growth covering various sectors like horticulture, dairy, and fisheries.
(I - Over all development of Agriculture sector)
Thus, the correct option is (c) A-IV, B-III, C-II, D-I.