Answer:
$8000 gain
Step-by-step explanation:
In this scenario, Leo would be recognizing and registering an $8000 gain as a result of the debt repayment. This is because the individual on the receiving end of a debt repayment is receiving money that they did not have before the repayment took place and are therefore gaining that amount. Even though the money was originally theirs and was lent out, since they did not have the money right before receiving the repayment it would be considered a gain.