(A) ** A former president
(B) A soldier
(C) Me
EXPLANATIONS BELOW
Concept note-1: -A member of the Democratic Party, he was the first African-American president of the United States. Obama previously served as a U.S. senator from Illinois from 2005 to 2008 and as an Illinois state senator from 1997 to 2004, and previously worked as a civil rights lawyer before entering politics.