Choice "C" is correct. Assets received by a not-for-profit organization that are not restricted either permanently or temporarily as regards to purpose, time or acquisition are classified as unrestricted. Long-lived assets would be recognized as unrestricted unless there was an accounting policy relative to time restrictions. Accounting policies implying time restrictions would result in classification of the asset as temporarily restricted and releasing the asset from restriction as it depreciates.
Choice "b" is incorrect. Classification of assets as temporarily restricted account for donor imposed restrictions that can be satisfied as to purpose, timing or asset acquisition requirements. Absent these requirements or an accounting policy implying a time restriction, the contribution of assets is classified as unrestricted.
Choice "d" is incorrect. Classification of assets as permanently restricted account for permanent donor imposed restrictions that can never be satisfied. Typically a corpus or principal is donated and permanently restricted and the income from the asset is either temporarily restricted or is unrestricted. The building received by Stanton College is not subject to any such restriction.
Choice "a" is incorrect. Classification of a contribution as temporary OR permanent is usually impossible and, in any case, is inappropriate in this case.