To get across the point that he is a lesser than those he speaks to.
The term "vetted" means "to make a careful examination," or "to investigate someone thoroughly." It is commonly used to ensure someone is trustworthy for a job. When Whitehurst says that the candidates have already been "extremely vetted," it is implied that the candidates were investigated to a great extent.
Is this a random question, or for a quiz
The answer is C. if the underlined word is "get"