The one that does not have a strong influence on the American English in the Late Modern English period was A. Separation from England. Late Modern English is from 1800-present. The changes in vocabulary in this time was due to industrial revolution as well as scientific advancements and colonialism as well.
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 ... "
The answer is for the winter concert