Answer: Fail
Explanation:
Due diligence is the act of investigation or assessment which is based on certain reason for letting a person enter into a contract for another party or person if he/she satisfies the legal requirement.
According to the question, Pam will fail with the defending claim of due diligence as it requires reasonable and proper investigation and examination of John before letting him enter into a contract or performing official task.As this act of investigation was not performed , her claim will be inefficient for misstatements mistake.