Under the ethical standards of the profession, which of the following situations involving nondependent members of an auditor's family is most likely to impair the auditor's independence?
Choice "C" is correct. Under Rule 101 of the Code of Professional Conduct, independence requirements extend to the member's spouse, dependent children, and dependent relatives. A spouse working for a client is considered part of the class of "members" subject to independence requirements.
Choices "a", "b", and "d" are incorrect. These choices do not, by definition, fall within the "member" class.