In a candy shop, the shopkeeper allows the exchange of $$3$$ sweet wrappers for $$1$$ new sweet. Peter has $$81$$ sweets at first. What is the largest possible number of sweets that Peter could have eaten? 
选项为:A:$$119$$  B:$$120$$  C:$$121$$  D:$$122$$  E:Non of the above  请回答其中一个选项.