If a partnership assumes the mortgage on an encumbered property, which of the following scenarios is most likely to be treated as nonqualified liability under the regulations for Section 707?

a) A mortgage incurred five years ago to acquire the property

b) A mortgage incurred one year ago for the purposes of developing a piece of land

c) A mortgage incurred five years ago for nonbusiness purposes

d) A mortgage incurred one year ago for nonbusiness