On $1$ January $2016,$ Donald Ltd acquired all the issued shares in Winston Ltd$.$ At that date, the plant of Tate Ltd had a fair value of $$10000$ more than its carrying amount and an estimated useful life of $5$ years. Tate Ltd depreciates the plant on a straight$-$line basis. The plant was sold to external parties on $31$ December $2016.$ The business combination valuation entries in relation to the plant as at $30$

June $2017$ will include:

I. Adjustments to the plant account to recognise the fair value adjustment at acquisition date

Il$.$ Adjustments to the current depreciation expense

III. Adjustments to retained earnings $($opening balance$)$

IV$.$ Transfers from business combination valuation reserve to retained earnings

a$.$ I only.

b$.$ I, Il and III only.

c$.$ II$,$ Ill and IV only.

d$.$ I, II$,$ Ill and IV$.$