Assets of Argus Ltd Include a Plot of Land Purchased $\quad$

Assets of Argus Ltd include a plot of land purchased for $40 000.On 1 January 20X0 Argus became a subsidiary of Cyclops Ltd.The land was sold on 30 March 20X9 for $350 000.The land's fair value at the following dates was:
1 January 20X0 $\quad$$\quad$$\quad$ $100 000
31 December 20X3 $\quad$$\quad$ $270 000
31 December 20X6 $\quad$$\quad$ $240 000
31 December 20X8 $\quad$$\quad$ $360 000
The group applies the cost model.The carrying amount of the land immediately before control date is $40 000.
What is the correct consolidation data adjustment entry for 31 December 20X9?

A)
$\begin{array}{llcc} \text { Dr Land } &\$60000 \\ \text { Cr. Fair value reserve } &&\$60000\\ \text {Dr Revenue-gain on sale \ } &\$60000\\ \text { Cr. Land } &&\$60000\\\end{array}$

B)
$\begin{array}{llcc} \text { Dr Land } &\$60000 \\ \text { Cr. Fair value reserve } &&\$60000\\ \text {Dr Revenue-gain on sale \ } &\$60000\\ \text { Cr. Land } &&\$60000\\\end{array}$

C)
$\begin{array}{lcc}\text { Dr Land } &\$200000 & \\\text {Cr. Fair value reserve } & & \$200000 \end{array}$


D)
$\begin{array}{llcc} \text { Dr Land } &\$320000 \\ \text { Cr. Fair value reserve } &&\$320000\\ \text {Dr Revenue-gain on sale \ } &\$310000\\ \text { Cr. Land } &&\$310000\\\end{array}$