The lewis and clark expedition was undertaken in order to explore the louisiana purchase, to learn * 1 point

a attempt to find a river route to the pacific ocean.

b form alliances with american indian tribes.

c provide americans with their first accounts of the northwest.

d establish the corps of discovery.

Human rights groups in the 20th century worked to: o a. european imperial powers maintain control over their colonies. o b. convince citizens in impoverished countries to embrace nationalism. o o o o c. ensure that people around the world were protected from brutal treatment. o d. weaken the influence of international organizations like the united nations. sub