please solve it

On 1 July 2010 Paddington Ltd acquired 100% of the share capital of Bear Ltd. On 1 July 2018, Bear Ltd sold an item of plant to Paddington Ltd for $500,000. Bear Ltd had originally purchased the plant for $600,000 on 1 July 2006. The original estimated useful life of the asset is 20 years. Which of the following consolidation adjustment entry would be required to adjust for the unrealized gain on sale as at 30 June 2019? O Dr Gain on sale $260,000 O Dr Retained earnings $200,000 O Dr Gain on sale $290,000 O Dr Gain on sale $230,000