Which of the following describes the outcome of the first Battle of Bull Run on July 21, 1861?
a. Confederate troops captured many sightseers who had come from Washington to view the battle. b. Union troops under General McDowell swept the Confederates, led by General Beauregard, from the field. c. Both armies fell into total confusion, and the fighting ended in chaos with many casualties. d. Union troops panicked during a Confederate counterattack and retreated to Washington.