A sole practitioner lawyer represented a wealthy woman in connection with tax matters for her fashion business. Another law firm handled all her other legal work. During the representation, the lawyer learned from the woman's assistant that the woman had violated state employment law by firing all individuals over a certain age. The lawyer asked the woman about this and she told him that he was only her tax lawyer and not her employment lawyer. She confessed to continuing to violate state employment laws, but asked him to keep this information confidential. The lawyer did not disclose this information to anyone. Did the lawyer violate the Model Rules by keeping this information confidential?

a. No, because attorneys must follow client directions on confidential information unless it involves substantially certain death or bodily harm.
b. Yes, because the lawyer had a duty to withdraw from further representation unless the client undid her age discrimination terminations.
c. Yes, because the lawyer knew that the woman was continuing to violate state employment law.
d. No, because the lawyer did not assist the client in any crime or fraud relating to employment.