(A) Canada
(B) Russia
(C) UK
(D) Germany
Correct Option is: BOleg Kononenko, a Russian cosmonaut, surpassed fellow Russian Gennady Padalka, who held the previous record of 878 days, 11 hours, 29 minutes, and 48 seconds in 2015. Kononenko spent more than 878 days and 12 hours in space.