The correct answer is D) Directly involve his audience.
Patrick Henry uses rhetorical questions in his speech to the Second Virginia Convention in order to directly involve his audience.
We are referring to his famous speech "Give Me Liberty or Give Me Deat," delivered in the Virginia House of Burgesses on March 23, 1775. The speech includes powerful rhetoric elements that Henry Used to convince the House of Burgesses to authorize troops for the Revolutionary War. In the speech, Henry wants to directly involve his audience with the use or rhetoric.