At Frank\textquotesingle s Fruit Market, $$3$$ bananas cost as much as $$1$$ apple, and $$6$$ apples cost as much as $$4$$ oranges. How many oranges cost as much as $$18$$ bananas? 
选项为:A:$$6$$  B:$$4$$  C:$$9$$  D:$$12$$  请回答其中一个选项.