(A) ** Nobel prize
(B) became president
(C) nothing
(D) first black president award
EXPLANATIONS BELOW
Concept note-1: -Obama, the 44th President of the United States, had been in power for less than eight months when he was awarded the Nobel Peace Prize for 2009. Among the reasons it gave, the Nobel Committee lauded Obama for his “extraordinary efforts to strengthen international diplomacy and cooperation between peoples”.
Concept note-2: -The 2009 Nobel Peace Prize was awarded to United States President Barack Obama (b. 1961) for his “extraordinary efforts to strengthen international diplomacy and cooperation between peoples".