Classification of investment property (Potential Error in book?)

[keep_running]

A firm that purchases a building that it intends to rent out for income would report this asset as investment property using the cost model under:
I thought answer was both GAAP and IFRS, but they claim it is just IFRS. I thought both accounting principles allowed for the cost method to report investment property?

 

[Tartaglia]

See curriculum p. 497 Reading 30:
Under US GAAP, there is no specific definition of investment property.