On 1 July 2021, Xavier Ltd rents a warehouse for one year from its subsidiary, Gabrielle Ltd, for $60 000. The company tax rate is 30%. The consolidation adjustment entry needed at 30 June 2023 is: a. Profit and loss summary DR 60 000 Retained earnings CR 60 000 Income tax expense DR 18 000 Deferred tax liability CR 18 000 b. Profit and loss summary DR 60 000 Retained earnings CR 60 000 c. Profit and loss summary DR 60 000 Retained earnings CR 60 000 Deferred tax asset DR 18 000 Income tax expense CR 18 000 d. No entry is required at 30 June 2023