I think it is C because A is missing commas, B doesn't need them and D doesn't need one.
He tells them what can he do to figure out his solution to the problem.
MLA 8 was designed to simplify the process, helping writers accurately and intuitively cite sources more easily, requiring that every source type follow the same format. This means that books, websites, periodicals, videos, photographs, and all other types of sources now use this same standard format.
Answer:
The children's ignorance show that they do not like scrooge.
Explanation:
THE GOAL WAS TO EXTERMINATE EVERY AMERICAN CHRISTIAN.