During an Interview with a Data-Entry Clerk in the Human

During an interview with a data-entry clerk in the human resources department, an internal auditor recognizes a potentially significant weakness with a database system used to track employee performance ratings. Which of the following actions should the auditor take after discovering the weakness?

A) Schedule a series of follow-up interviews with the data-entry clerk.
B) Avoid either directly or indirectly confronting the data-entry clerk about the system weakness.
C) Question the data-entry clerk indirectly to help obtain more factual information about the weakness.
D) Immediately document the weakness and write a report to the data-entry clerk's superior.