(A) ** Obama won the popular vote
(B) Obama lost the popular vote
(C) ** Obama won the electoral college
(D) Obama lost the electoral college
EXPLANATIONS BELOW
Concept note-1: -Obama won a decisive victory over McCain, winning the Electoral College and the popular vote by a sizable margin, including states that had not voted for the Democratic presidential candidate since 1976 (North Carolina) and 1964 (Indiana, Virginia, and Nebraska’s 2nd congressional district).
Concept note-2: -On November 4, 2008, Obama defeated the Republican nominee, Senator John McCain of Arizona, making him the President-elect and the first African American elected President. He was the third sitting U.S. Senator, after Warren G. Harding and John F. Kennedy, to be elected president.