Throw two dice of the same quality and size. The six sides of each die are marked with number of dots from $$1$$ to $$6$$, respectively. Among the following options,~\uline{~~~~~~~~~~}~is an impossible event. 
选项为:A:The sum of dots is $$12$$.  B:The sum of dots is smaller than $$3$$.  C:The sum of dots is larger than $$4$$ but smaller than $$8$$.  D:The sum of dots is $$13$$.  请回答其中一个选项.