An auditor discovers some material inefficiencies in a purchasing function. The purchasing manager happens to be the auditor's next-door neighbor and best friend. In accordance with the code of eithics, the auditor should:

a. Objectively include the facts of the case in the audit report.

b. Not report the incident because of loyalty to the friend.

c. Include the facts of the case in a special report submitted only to the friend.

d. Not report the friend unless the activity is illegal.