The sum of the digits of $$1993$$ is $$1+9+9+3$$, or $$22$$. At some time in the future, the sum of the digits of a year will be $$33$$. This will \emph{first} occur in the century. 
选项为:A:$$21\text{st}$$  B:$$60\text{th}$$  C:$$70\text{th}$$  D:$$80\text{th}$$  请回答其中一个选项.