Answer: He thinks that the land did not betray his family, and so why should his son. Rather than express his anger and fear fully, Musoni keeps much of it to himself.
The answer would be D. all if the above
It sounds more like "Cause and Effect" so I would go with that...
The answer would be A.
The question you have to ask is, is it possessive?
Yes it is possessive.
The wing is owned by the bird. Its wing was broken.
It's means it is or it has.
It's would not make sense in this case because you can not put it is or it has into this sentence.
That paragraph is an example of exemplification :)