Final answer:
Crispus Attucks was important during the American Revolution because he was an African American killed during the Boston Massacre, becoming the first casualty in the fight for independence and a symbol for liberty. The correct option, according to the question, is D.
Step-by-step explanation:
Crispus Attucks was significant during the American Revolution because he was killed during the Boston Massacre, which was a pivotal event leading up to the Revolutionary War. Attucks, a man of African and Native American ancestry, became a symbol of British oppression and was revered as the first casualty in the war for independence, even though the Declaration hadn't been drafted yet and the official war had not started. He is remembered for his contribution to the American struggle for independence and his death helped galvanize the colonial resistance against British rule.
Despite the significant role of Attucks and the patriotism his death inspired, black soldiers were uncommon in the Revolutionary War relative to the total number of combatants. However, those who served were part of the militias which later formed the Continental Army. They served in integrated units, receiving the same pay as white soldiers, though none held a rank higher than corporal.