Which clause is described by the line "In witness whereof, I have hereunto set my hand and official seal"?

• A. Testimonial clause
• B. Jurat clause
• C. Attestation clause
• D. Power of attorney clause

Answer: (A)

The line is the closing statement of a testimonial clause. It signals the notary’s formal certification that the instrument has been executed and witnessed, and that the notary is affixing the official seal to attest to that fact. It’s not the oath content of a jurat, which would state the signer was sworn; nor the language of an acknowledgment that the signer acknowledged the signature; nor a power of attorney clause about someone acting for another. This closing phrase confirms the instrument’s execution and the notary’s attested jurisdiction over it.