General George Armstrong Custer's Purpose in Bringing His Troops into the Black

General George Armstrong Custer's purpose in bringing his troops into the Black Hills of South Dakota was to

A) find a location for a new fort.
B) Christianize the Indians, using force if necessary.
C) confirm rumors about the existence of gold.
D) negotiate a peace treaty with the Sioux at Little Bighorn.
E) drive the Indians out of the Black Hills.