The question lacks some context but I would say B) might be the right answer. Hope this helps!
Brother quang?? is he your brother? what book is this from? Sorry i do not kbnow thte answer include more details
The wife in "The Wife's Lament" thinks her husband is A. suffering great sadness.
He was forced to leave her and the town he was living in, although it is not explained why this is the case. His wife is devastated, and believes that he is in great pain because he had to abandon her. This is why she wants to go and find him, in order to be with him again.
I f I understand the one you are talking about , it is interaction between individuals and multiple social systems
