In which of the following situations would it be most appropriate to employ the services of a forensic specialist?

In which of the following situations would it be most appropriate to employ the services of a forensic specialist?
A . Detection of unauthorized changes to source documents.
B . Review for misapplication of general computer controls over accounts receivable.
C . Investigation of ghost employees in a large business.
D . Verification of fixed assets in a manufacturing company.

Answer: A