The correct answer is letter C: American Colonists
Patrick Henry delivered this very important speech during the Second Virginia Convention in March 23rd, 1775. This convention was debating whether they should send troops to fight against the British in the Revolutionary war and Patrick Henry, with these speech, urged them to do it.
The correct answer is letter C because he addressed the audience of this convention (Of Virginia) and its president (Peyton Randolph of Williamsburg), who were American Colonists, with this speech.