How did british and native american alliances contribute to the move toward war?

In the Americas, the British and Native Americans had a common enemy prior to the start of the Revolutionary War - the colonists. At that time, the thirteen colonies had declared their independence from the British Crown. As such, Britain moved to take military action against the newly created United States to crush the movement for independence. At the same time, Native Americans harbored a strong distrust against the Americans due to their ambition to expand into Native lands. They believe that establishing military alliances with the British would help be beneficial in stopping the continued colonization of the Americas. This alliance between the British and the Native Americans gave them confidence that they would be able to quell the uprising by the thirteen colonies and contributed greatly towards war.

B,c and d are the answers