The telephone was an innovation of
a.
guglielmo marconi
b.
thomas edison
c.
alexander graham bell
d.
jean lenoir
e.
gustav eiffel

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