If Marlon, there were $$30$$ days last month, $$12$$ of which were sunny. What is the percent of the days NOT sunny? 
选项为:A:$$36\textbackslash\%$$  B:$$40\textbackslash\%$$  C:$$60\textbackslash\%$$  D:$$64\textbackslash\%$$  请回答其中一个选项.