Who is right?  Anna: "The largest number possible has $$6$$ digits."  Boris: "The largest number possible has $$1000$$ digits."  Caroline: "The largest number possible can be only written with the $$9$$ digits."  Daniel: "The largest number possible cannot be written."  Else: "The largest number possible has $$0$$ as the last digit."~($$2006$$ Math Kangaroo Problem, Level $$1-2$$, Question \#$$21$$) 
选项为:A:$$$$Anna  B:$$$$Boris  C:$$$$Caroline  D:$$$$Daniel  E:$$$$Else  请回答其中一个选项.