The correct option is D June 3
The first official World Bicycle Day (WBD) is observed by United Nations (UN) on 3rd June 2018 to encourage a simple, affordable, reliable, clean and environmentally fit sustainable means of transportation. On this occasion, Vice President M Venkaiah Naidu flagged off a cycling event at Connaught Place in New Delhi Nearly five thousand cyclists participated in the 8km long event. New Delhi Municipal Council has organised the event in association with World Cycling Alliance.