Step 1: Understand the role of a notary public.
A notary public is an official appointed by the government to witness signatures on legal documents and administer oaths.
Step 2: Evaluate the options.
- Government officer: Correct answer, as a notary public is appointed by the government.
- Drawer: A drawer is someone who writes a check or draft.
- Payee: The person who receives the payment.
- Endorsee: A person to whom a negotiable instrument is transferred.
Step 3: Conclusion.
Thus, a notary public is a government officer.
Final Answer: \[ \boxed{Government \; officer} \]