When performing a notarization, how must the signer confirm the truthfulness of the document's contents?

The correct response is that the signer must confirm the truthfulness of the document's contents by swearing or affirming in the Notary's presence. This process is crucial in the notarization procedure as it obligates the signer to declare that the information contained in the document is accurate to the best of their knowledge.

When a signer takes an oath or affirmation, they are legally committing to the truthfulness of their statements. The Notary plays a vital role in this by ensuring that the signer understands the significance of their declaration and that it is made voluntarily and without duress. This process helps maintain the integrity of the notarization, as it emphasizes the serious nature of the document being signed.

Other options do not fulfill the legal requirements for notarization. Simply signing a document does not provide a means of confirming the content, nor does a verbal commitment without the formality of an oath. Providing supporting documentation, while potentially informative, does not replace the necessity for the signer to explicitly state the truthfulness of the document in the presence of the Notary. Thus, swearing or affirming is the appropriate method for confirming the contents of a document during notarization.