How did islam spread throughout the middle east during muhammad's lifetime? a. through a movement of nonviolent sermons and protests b. through the conversion of powerful christian leaders c. through a series of military conquests d. through economic dominance over the silk road

How did the united states respond when north vietnam attacked a us warship and sent troops to south vietnam in the early 1960s? a.the united states declined to assist south vietnam against the north. b.us leaders authorized south vietnam to invade north vietnam. c.the president did not sign the gulf of tonkin resolution. d.congress authorized the president to escalate the conflict.