Answer
C. When Fred came home from school, he was in a bad
mood.
The first one, a brother & sister that immigrated to the Us from Ireland as children. The reason why is because they experienced the struggles as an immigrant first hand instead of using someone else's story, giving it more credibility.
1.It's A because 'as' should have been used, meaning 'which'. 'I will refuse his demands which are outrageous '.
2.But' unless' has nothing to do with the context provided in C because 'until' should have fitted here.
