If we throw two $6-$sided dice of the same shape and size, which statements among the following options is an impossible event? 
选项为:A:The sum of dots is $$12$$.  B:The product is a prime number.  C:The sum of dots is larger than $$1$$ but smaller than $$3$$.  D:The product of is $40$.  请回答其中一个选项.