I have solutions for 2012 version, but just wonders if there has been any updates that might apply to these questions.

(II) For the following, indicate if the items are fully taxable, partially taxable, or nontaxable for regular tax purposes. Selections F. Fully taxable for regular tax purposes. P. Partially taxable for regular tax purposes. N. Nontaxable for regular tax purposes. (F) (P) (N) 18 The portion of Corp's refund that represented the overpayment of prior year federal income taxes. The portion of Corp's refund that is attributable to the interest 19 on the overpayment of federal income taxes. Corp's received dividend income from a mutual fund that solely 20 invests in municipal bonds. Corp's the lessor, benefited from the capital improvements made to its property by the lessee. The lease agreement provides 21 for a reduction in rental payments by the lessee in exchange for the improvements