Alternatively to the prior paragraph of this subsection, any requirement for two witnesses shall be satisfied if witnessed by one notary public, who shall comply with all the other requirements of that paragraph. The notary shall affix a valid notarial seal to the envelope, and include the word "Notary Public" below his or her signature.
The persons in whose presence the ballot is marked shall at all times respect the secrecy of the ballot and the privacy of the absentee voter, unless the voter requests assistance and that person is otherwise authorized by law to give assistance. When thus executed, the sealed container-return envelope, with the ballots enclosed, shall be transmitted in accordance with the provisions of subsection (b) of this section to the county board of elections which issued the ballots.
N.C. Gen. Stat. § 163-231