Indicate the alternative that best completes the following sentence: Upon obtaining factual documentation of unethical

business conduct by the vice president, to whom the chief audit executive $($CAE$)$ reports, the CAE should do the following:

a$.$ Report the facts to the chief executive officer and the audit committee.

b$.$ Conduct an investigation to determine the extent of the vice president's involvement in the unethical acts.

c$.$ Schedule an audit of the business function involved.

d$.$ Confront the vice president with the facts before proceeding with the investigation.