Final answer:
The colonial army had an important victory after a surprise attack on Trenton, New Jersey.
Step-by-step explanation:
The correct answer is D: Trenton, New Jersey. In 1776, Commander George Washington led a surprise attack on the Hessian troops stationed in Trenton during the American Revolutionary War. This victory lifted the spirits of the American soldiers and boosted morale throughout the army.
Learn more about George Washington's victory in Trenton