Carved-out volumetric production payments payable out of specific reserves in place, but where there is no obligation for the producer to make up any inadequate production, are to be accounted for as _______________.

a. Unearned revenue by the producer and acquisition of an asset by the purchaser

b. A sale of a mineral asset (with gain/loss being recognized) by the producer and acquisition of an asset by the purchaser

c. A derivative in accordance with ASC 815-15

d. A sale of a mineral asset (with gain/loss being recognized) by the producer and a receivable by the purchaser

e. None of these