Answer:
a. sale price exceeds the book value of the asset sold.
Step-by-step explanation:
The gain recognized when the sale price is exceeded than the book value i.e
Gain recognized = Sale price - book value
where
Sale price is the selling price of the asset
And, the book value is the carrying value of the asset
Book value = Acquired value of an asset - accumulated depreciation
Hence, the option a is correct