Answer:
No sickness
Explanation:
because I am a person who does not like to go get sick and I like to be at school a lot, but I don't put up with my cousin being mean to me at school. I will not tolerate it, but back to the sickness, I just don't like getting sick cause you miss out on thing that happen and you can't eat your favorite foods, and you have to miss school.
A and B are not run-on sentences because A doesn't even have a comma in it. And B has a semicolon. Something that would prevent a run-on sentence.
It comes down to C or D. D has a nonrestrictive clause.
My finally answer comes to C.
The answer is : A ) Carol and Donald.
-Hope this helps.