The correct answer is: A. Boris Tadic.
Boris Tadic was the President of Serbia from 2004 to 2012. He was elected in 2004 and re-elected in 2008. He is a member of the Democratic Party.
Tomislav Nikolic was the President of Serbia from 2012 to 2017. He was elected in 2012 and defeated by Aleksandar Vucic in 2017. He is a member of the Serbian Progressive Party.
Samak Sundaravej was the Prime Minister of Thailand from 2008 to 2009. He was elected in 2008 and removed from office by a court order in 2009. He is a member of the People’s Power Party.
Novak Djokovic is a Serbian professional tennis player. He is ranked No. 1 in the world by the Association of Tennis Professionals (ATP). He has won 20 Grand Slam singles titles, the most in history for a male player. He is also a former world No. 1 in doubles.