[2) It is partially amortizing and a balloon payment of $50,000 is scheduled at the end of year20? (3) It is a non amortizing, or "interest only," loan? [4) It is a negative amortizing loan and the loan balance will be $150,000 at the end of year20? b. What will the loan balance be at the end of year 5 under parts a [1} through a (4}? c. What would be the interest portion of the payment scheduled for payment at the end of month 61 for each case (1) thru {4] above? 0'. Assume that the lender charges 3 points to close the loans in parts a [1} through a