Which of the Following Identifies an Impairment of an Asset $\quad$

Which of the following identifies an impairment of an asset and describes the appropriate accounting treatment using the cost model as per AASB 136 Impairment of Assets? $\quad$ Impairment identified when: $\quad$$\quad$$\quad$$\quad$ Appropriate accounting treatment
a.Carrying amount of an asset is less $\quad$$\quad$ Asset is written up to its recoverable amount
$\quad$ than its recoverable amount
b.Carrying amount of an asset is less $\quad$$\quad$ No change to the asset value
$\quad$ than its recoverable amount
c.Carrying amount of an asset is $\quad$ $\quad$$\quad$ Asset is written down to its recoverable
$\quad$ greater than itsrecoverable amount $\quad$$\quad$ amount
d.Caryying amount of an asset is $\quad$$\quad$$\quad$ No change to the asset value
$\quad$ oreater than its recoverable amount