Gridiron University is a private university. A successful alumnus has recently donated 1,000,000 to Girdion for the purpose of funding a "center for the study of sports ethics." This donation is conditional upon the university raising matching funds within the next 12 months. The university administrators estimate that they have a 50% chance of raising the additional money. How should this donation be accounted for?
a) as a temporarily restricted support
b) as unrestricted support
c) as a refundable advance
d) as a memorandun entry reported in the footnotes