Answer:
A. The American Revolutionary War began through fighting between colonial militia and British troops.
Explanation:
The British were wanting to clamp down on the possibility of insurrection by colonists in the months after the Boston Tea Party (December, 1773). When British troops marched into Lexington, Massachusetts on April 19, 1775, they were met by colonial militia commanded by Captain John Parker.
There's continued debate about who fired the first shots. But by the end of the Battle of Lexington and Concord, 73 British troops had been killed and many others wounded. The American Patriots lost 49 men. The Revolutionary War had begun.