Who were crazy horse, geronimo, and sitting bull?

a. white farmers who became rich
b. american indian leaders of the movement to settle on new lands
c. african american teachers who established schools
d. american indian leaders who fought against the u. s. army
ps

answer the answer is a

answer; /// i do believe that its napolean's conquest of spain;

well this is going to be a long answer lol ok so the visigoths were a branch of the goths who frequently raided rome, uh the hunas attacked the guptas a lot and weakened them, uuhm of course the romans used math and science in there every day lives i mean they had a whole empire to run, and rome was split into east and west by a general named diocletian. hope this you! : )