The Determining Factor for Accounting Treatment of a Troubled Debt

The determining factor for accounting treatment of a troubled debt restructuring when there is a continuation with modification of terms is whether

A) there is a gain or loss on the transaction to the debtor.
B) there is a gain or loss on the transaction to the lender.
C) the undiscounted sum of the future cash flows under the restructured note is above or below the note's book value (including accrued interest) at the restructuring date.
D) the discounted sum of the future cash flows under the restructured note is above or below the note's book value (including accrued interest) at the restructuring date.