The Union's defeat in battle at Bull Run in 1861 was better than a victory because
A) Ulysses S. Grant took command of the army immediately after the setback.
B) the defeat caused Northerners to face up to the reality of a long, difficult war.
C) "Stonewall" Jackson was killed.
D) it caused Lincoln to declare a war against slavery.
E) all of the above.
