After ___ days of execution of the acknowledgment, it can only be challenged on the basis of fraud, duress, or material mistake of fact.

• A. 30 days
• B. 45 days
• C. 60 days
• D. 90 days

Answer: (C)

The idea being tested is that a notarized acknowledgment creates a public instrument with a limited window for challenge. Once an acknowledgment has been executed, the instrument gains presumptive regularity, and parties have a set period to object to any irregularities. After that period, you can’t attack the acknowledgment on general grounds of invalidity; you can only challenge it if there was fraud, duress, or a material mistake of fact.

Sixty days is the chosen window because it provides enough time to review the document and raise a concern without letting challenges drag on indefinitely. This balance protects the reliability of notarized documents and the certainty of titles and rights, while still allowing relief if a serious defect—fraud, coercion, or a substantial factual error—is discovered.

The other durations don’t fit because they don’t align with this balancing act: shorter periods would unduly restrict timely challenges, while a longer period would undermine the finality and stability of public instruments.