C and d
Those are your answers
Explanation:
The Boston Massacre occurred when the British troops stationed in Boston came to blows against the colonists. The colonists were angry about being unfairly taxed and angry at the British occupation and took their anger out on the troops, as they threw snowballs and other items.
The Monroe Doctrine<span> was a U.S. foreign policy regarding domination of the American continent in 1823. It stated that further efforts by European nations to colonize land or interfere with states in North or South America would be viewed as acts of aggression, requiring U.S. intervention.</span>
