Under the independence standards of the GAO for performing audits in accordance with generally accepted government auditing standards, which of the following are overreaching principles for determining whether a nonaudit service impairs independence?
I. Auditors must not perform nonaudit services that involve performing management functions or making management decisions.
II. Auditors must not audit their own work or provide nonaudit services in situations in which the nonaudit services are significant or material to the subject matter of the audit.
III. Auditors must not perform nonaudit services which require independence.
a. I only.
b. I and II only.
c. I, II and III.
d. II and III only.