Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

Under the revaluation model for property, plant, and equipment and the fair model for investment property:
Option A:fair value of the asset must be able to be measured reliably.
Option B:net income is affected by all changes in the fair value of the asset.
Option C:net income is never affected if the asset increases in value from its carrying amount.

Answer: A