The answer is B.
How i know? I just took the quiz and it corrected me since I myself got the question wrong.
The killers view their victims as children. The victims we're four children and traveled as a group after finishing their sunday lessons. The children had gone to the basement and wanted to change into choir clothes and they we're killed.
The first sentence is that begins with his conscience was clear... and ends with he left all his cares to heaven. That is a common suggestion when one prays, that is, leaving all our cares to heaven. Somewhere the Bible says that we should put our problems in God's hands.
The second sentence confirms the one above. The second sentence begins "in the morning, after he had said his prayers ... "
