Why did Tecumseh, the Shawnee chief, resort to an alliance with the British?

A.
He needed Britain's aid to avert land being ceded to French settlers in the Louisiana Purchase.
B.
He needed Britain's aid to battle against Governor Harrison's soldiers at Prophetstown.
C.
He needed Britain's aid to restrict American settlements from encroaching on Indian land.
D.
He needed Britain's aid to subdue his brother Lalawethica, who had staged a coup.

Which of the following arguments decided the debate over using the atomic bomb against japan in 1945? using the bomb would destroy the armaments still available to japanese forces in japan. using the bomb would demonstrate the power of the united states to the entire world. using the bomb would shorten the war and avoid heavy casualties among invading troops. using the bomb would enable allied forces to invade and take over the japanese mainland