Which of the following cosmonauts currently holds record for having spent maximum time in Space?
[A]Gennady Padalka
[B]Sergei Krikalev
[C]Alexandr Kaleri
[D]Sergei Avdeyev

Gennady Padalka
In September 2015, the Russian astronaut Gennady Padalka has returned to Earth with the record for having spent the most time in space. The 57-year-old’s latest mission lasted 168 days, bringing his total to 879 days in space over five trips; which is more than anyone else so far.