At the first battle of bull run:

a) spectators from the city came with picnic baskets to watch.
b) the confederates swept northward and briefly captured washington, d. c.
c) general grant made a name for himself.
d) both sides suffered more casualties than they did in any other single day during the war.

the answer is

B) the Confederates swept northward and briefly captured Washington, D.C.

Explanation:

The First Battle of Bull Run, also known as the Battle of Manassas, marked the first major land battle of the American Civil War. On July 21, 1861, Union and Confederate armies clashed near Manassas Junction, Virginia. The engagement began when about 35,000 Union troops marched from the federal capital in Washington, D.C. to strike a Confederate force of 20,000 along a small river known as Bull Run.

the enslaved people onboard suffered from illness with some frequency