Answer:
Must ask the interviewer to provide him, critic review of his performance
Explanation:
David must inquire the interviewer about his performance and lagging so that he could get an idea of his weakness or mistakes on which he can work upon so that he should not repeat them again in any further interview.
He can also raise questions regarding his job description, place of posting, expected date of result declaration, questions related to company's perks and benefits, management etc.
