5. Which of the following tax planning statements is true? I. The Grahams should, based on tax-equivalent investment calculations, transfer their money market mutual fund assets to an Anystate municipal money market fund. II. By paying off their home equity loan early, they will increase discretionary cash ow but lose a tax deduction. III. Using municipal bond investments will increase both the Grahams' level of discretionary cash ow and their taxable income. IV. Increasing 401(k) contributions will decrease the amount of taxes the Grahams will pay at the federal level. a. I and 11 only b. II and IV only c. I, II, and IV only d. 11,111, and IV only