Lily exchanges an apartment building with a basis of $80,000 and a FMV of $125,000, for an office building with a FMV of $115,000 and cash of $10,000. What is Lily's recognized gain and basis in the new office building? $10,000 gain, $90,000 basis in new building $45,000 gain, $115,000 basis in new building SO gain, $80,000 basis in new building $10,000 gain, $80,000 basis in new building