Linda paid $$8$$ dollars for $$4$$ potatoes. How many dollars did Linda pay for the same kind of potatoes if she bought $$6$$ more of them? (adapted from $$2008$$ Math kangaroo Problems, Level $$1-2$$, Question \#$$13$$) 
选项为:A:$$18$$  B:$$20$$  C:$$24$$  D:$$22$$  请回答其中一个选项.