Please explain why these are this way, I dont understand

Discussion Question 5-18 (LO. 2) Ralph has experienced financial difficulties as a result of his struggling business. He has been behind on his mortgage payments for the last six months. The mortgage holder, who is a friend of Ralph's, has offered to accept $80,000 in full payment of the $100,000 owed on the mortgage and payable over the next 10 years. The interest rate of the mortgage is 7%, and the market rate is now 8%. Considering the creditor's offer, help Ralph by identifying whether the following are "Yes, a tax issue" or "No, not a tax issue