D$.$ Co has a cash generating unit. The unit was reviewed for impairment at $31$ December $2018$ as required by IAS $36$ Impairment of Assets.The impairment review revealed that the cash generating unit had a value in use of $$50$ million and a fair value less costs of disposal of $$46$ million.The carrying amounts of the net assets of the cash generating unit immediately prior to the impairment review were as follows. Goodwill $$10000000$ Property, plant and equipment $$36000000$ Current assets $$8000000$The review indicated that an item of plant $($included in the above figure of $$36$ million$)$ with a carrying amount of $$2$ million had been severely damaged and was virtually worthless. There was no other evidence of obvious impairment to specific assets.What is the carrying amount of the goodwill relating to the unit immediately after the results of the impairment review have been reflected in accordance with $1$A$536?$ $$2$ million $$3$ million $$6$ million $$8$ million