Which of These Has Not Been an Issue with Which

Multiple Choice

Which of these has not been an issue with which Russia's President Vladimir Putin has had to deal?

A) The breakaway republic of Chechen and its terrorists.
B) The weakness of Russian agriculture.
C) The relationship with the United States over American actions in the Middle East.
D) The difficulty of trying to repress what he views as too much democracy and too many political opponents.
E) Government corruption.