Answer:
The item is identifiable and lacks physical substance.
Explanation:
Intangible asset: Intangible asset is that asset which cannot be seen or even touched. It has no physical existence.
Example: Goodwill, patents, trademarks, copyrights and other intellectual properties
In these types of assets, amortization is charged instead of depreciation.
It neither used for production, nor its gains any scientific or technical knowledge, and its value neither measure reliability
Hence, option a is correct