Every positive integer is congruent modulo $9$ to the sum of its decimal digits.  Now, let $S(n)$ equal the sum of the digits of positive integer $n$. For example, $S(1507)=13$. For a particular positive integer $n, S(n)=691$. Which of the following could be the value of $S(n+2)$? (Adapted From 2017 AMC 12A Problems, Question \#18) 
选项为:A:$$9$$  B:$$17$$  C:$$143$$  D:$$116$$  E:$$6$$  请回答其中一个选项.