The correct option is D Bindeshwar Pathak
Dr. Bindeshwar Pathak, the noted social reformer and founder of Sulabh International, has been honoured with Japan’s prestigious Nikkei Asia Prize for his significant work in tackling poor hygiene and discrimination. The award was given under ‘Culture and Community’ category at the 23rd Nikkei Asia Prize in Tokyo on June 13, 2018. He received the award for the invention of two-pit pour-flush ecological compost toilets that help provide low-cost environment-friendly toilets to millions in the developing world.