$$A+B+C=2021$$, $$A$$, $$B$$ and $$C$$ have $$8$$, $$10$$ and $$11$$ factors respectively, and $$B$$ and $$C$$ are mutually prime, then $$A$$ is ．  $$A+B+C=2021$$，$$A$$、$$B$$、$$C$$分别有$$8$$、$$10$$、$$11$$个因数，并且$$B$$与$$C$$互质，那么$$A$$是． 
选项为:A:$$360$$  B:$$380$$  C:$$390$$  D:$$420$$  E:$$430$$  请回答其中一个选项.