What must a notary do when witnessing a signature?

The correct choice emphasizes the essential responsibilities of a notary public when witnessing a signature. A notary must not only verify that the signer is physically present but also confirm that they are competent, which means the signer is of sound mind and understands the nature of the document they are signing. Additionally, ensuring that the signer is signing willingly is crucial to prevent any coercion or intimidation. This comprehensive responsibility helps to uphold the integrity of the notarization process and provides legal assurances about the authenticity of the signature.

While checking the identification of the signer is an important part of the process, it is not the only requirement for a notary when witnessing a signature. Simply witnessing a signature without verifying these critical aspects would fail to fulfill the notarial duty. Recording the signature in a notary log is also a necessary practice, but it does not encompass the full scope of the notary's role when witnessing a signature. A notary must be vigilant in observing all elements involved in the signing process to ensure they are adhering to the legal obligations of their position.