Under AASB 136 Impairment of Assets, Impairment of an Asset $\quad$

Under AASB 136 Impairment of Assets, impairment of an asset, and the accounting treatment using the cost model, are as follows:
$\quad$$\quad$ Impairment $\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$ Accounting treatment
a. Carrying amount of an asset is less $\quad$$\quad$ Asset is written up to its recoverable amount
than its recoverable amount
b. Carrying amount of an asset is less $\quad$$\quad$$\quad$$\quad$ No change to the asset value
than its recoverable amount
c. Carrying amount of an asset is $\quad$$\quad$$\quad$$\quad$ Asset is written down to its recoverable amount
greater than its recoverable amount
d. Carrying amount of an asset is $\quad$$\quad$$\quad$$\quad$ No change to the asset value
greater than its recoverable amount