Choice "A" is correct. A long-lived asset is impaired if the carrying amount of the asset is greater than, not less than, its fair value and if that carrying amount is not recoverable (the fair value would be recoverable, but the difference would not be). An impairment loss would then be recognized for the amount of the difference between book value and fair value.
Choices "d", "b", and "c" are incorrect per the above explanation.
