Answer:
The murdering might inherit from generation to generation. He also believes that by killing his son, he helps his mother get released from purgatory. Hence, the Old Man's motive in murdering the Boy is to break endless cycle of violence.
It is a poem about life and human nature.
D...an example of the theme of tragedy :)
The correct answer should be additionally.
The word additionally would provide the best transition between these two sentence. It is so because you have one idea in the first sentence, and then you want to show another idea very similar to the first one in the second sentence. Using additionally to convey that is the way to go.
