Which question should a notary ask for a verification upon oath or affirmation?

The question "Do you solemnly swear that the statements are true?" is the appropriate one for a verification upon oath or affirmation because it directly invokes the individual's commitment to honesty and truthfulness regarding the information provided. In notarial practices, an oath or affirmation serves as a formal pledge where the signer declares that the content of their statements—usually in a legal context—is factual and accurate.

This process is crucial because it gives the document legal standing and ensures that the signer understands the seriousness of the information they are attesting to. By swearing to the truth of their statements, the signer acknowledges potential legal consequences for dishonesty, which underlines the importance of integrity in legal documents.

Considering the other options, while acknowledging the voluntary signing, having read the document, or the action of signing before the notary are important aspects of the notarization process, they do not constitute the solemn commitment to truth that is fundamental in oaths or affirmations. Therefore, they do not align with the specific requirement for a verification upon oath or affirmation.