At the Battle of Antietam, Confederate General Robert E. Lee
A. failed to stop Union troops in their march toward Richmond.
B. led the South to victory in spite of losing thousands of troops.
C. was overwhelmed by General McClellan’s attack.
D. tried to advance his troops but was turned back by Union forces.

The correct answer is C. was overwhelmed by General McClellan’s attack.

Explanation

Robert Lee (1807 - 1870) was an American Confederate military man during the Civil War who is recognized for having surrendered in 1865 during the first armed confrontation of the American Civil War, The Battle of Antietam that began in the year 1862. This confrontation ended with the Surrender of Robert Lee who after repeated attacks by Commander McCellan's army was overwhelmed and decided to withdraw. So, the correct answer is C. was overwhelmed by General McClellan’s attack.

.tried to advance his troops but was turned back by Union forces.

Explanation:

This "win" for the Union troops at the Battle of Antietam became a major turning point in World War II. This is due to the fact that this win gave Abe Lincoln the confidence to issue the Emancipation Proclamation. This document would change the scope of the war, as it was clear that the Civil War was now about bringing an end to the institution of slavery in the United States.