You Are an Investment Adviser to Mr

You are an investment adviser to Mr. Crochety, an elderly man who lives solely on his social security income although he managed to accumulate an investment portfolio worth about $100,000 over the years. Mr. Crochety recently got his hands on a business publication and read about the tax-free interest paid by municipal bonds. He calls you and instructs you to sell his other investments and invest all his money in a municipal bond portfolio, so that "the government doesn't get any more of my hard-earned money." You tell Mr. Crochety that you don't believe this is a wise move because he's in such a low tax bracket that municipal bonds are not a good investment for him, but he is insistent. Based on these facts, you should

A) ignore Mr. Crochety's instruction since it is not in his best interest.
B) require Mr. Crochety to sign an affidavit of liability waiver, indicating that you will not be held responsible for any adverse consequences of this decision.
C) have Mr. Crochety sign a statement of investment policy that indicates that this transaction is being executed on the client's instructions and that you have advised the client against it.
D) call Mr. Crochety's relatives and suggest they have him examined for mental instability.