A. Bilk Nancy
B. Olegeo Naci
C. Oleg Kononenko
D. Lols Pansu
Brief Facts about Oleg Kononenko:
Oleg Kononenko is a Russian cosmonaut who has spent most time in space. He has spent almost 878 days and 12 hours in Earth space which is a new world record in space history. This is equal to two-and-a-half years according to the report published by Sky News.