Because it is someone's memory that they are explaining it's told from their past or lifetime
I believe the correct answers are: B) They deliberately ignored the suffering of the parish children, and D) They wanted to give the impression that they were performing their work.
Apparently, all the parish officials wanted was to preserve the appearance that everything was right, while keeping up with their corrupted practice of conceiving the problems and malpractice. Their duty was to make sure that the children were cared for, but they refused to do it, fully aware of the consequences.
These individuals are fighting because they have conflicting ideas. One side believes that white people are superior to every other race, while the other believes all races are equal, and not one is better than the other.
It is because of this strong disagreement that these people are at each other's throats. Add in an immense passion for your beliefs, and that can spark violence.
Hopefully, this helps! =)