(A) Texas
(B) Kentucky
(C) ** Illinois
(D) California
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.
Concept note-2: -Barack Obama served three terms in the Illinois Senate from 1997 to 2005, when he was elected to the United States Senate.
Concept note-3: -The Illinois Senate career of Barack Obama began in 1997 after his first election in 1996 to a two-year term in the Illinois Senate representing Illinois’ 13th Legislative District in Chicago. He was re-elected in 1998 to a four-year term and re-elected again in 2002 to another four-year term.
Concept note-4: -After four years living in New York, Obama moved to Chicago to work as a community organizer.