President Abraham Lincoln respond to the Union retreat at the Battle of Bull Run by calling for additional troops and put General George B. McClellan in command.
Answer: Option A
Explanation:
The 1st battle of Bull Run was which is considered as the 1st battle of Civil War resulted in the defeat of Union forces and Confederates Won the battle. After the defeat of north in the war, President Lincoln enlisted 500,000 additional union soldiers and also appointed General George B. McClellan in the command of the military force.
But, in March 1862, he was removed from the command by the president as he displeased the president with his inaction to move the army into confederate territory.