This question tests the boundary of a signing agent's authority, which is the single line that separates a lawful signing appointment from the unauthorized practice of law. A notary signing agent is hired to identify the signer, witness signatures and notarize — not to negotiate, interpret or alter the instrument. Striking a clause changes the substance of a contract between the borrower and the lender, and neither the notary nor the borrower can unilaterally amend a document the lender has already approved for execution. The correct move is always to escalate to the party with authority over the document and let them decide, which may mean redrawing the package. Note that signing agent practice is career training built on top of a notary commission; it is not part of the California state examination.