The answer, in my opinion, is the second sentence, "The coach who is an expert in the sport explained the revised rules to us". Here, the "Who is an expert", is presumably the nonessential clause.
Answer:
plot diagram
Explanation:
Image result for how do I do a plot diagram
Plot Diagram Defined
The exposition or the introduction introduces the characters, describes the setting and establishes the problem in the story.
The rising action is where the suspense builds and the problem gets worse and becomes more complicated. ...
The climax is the turning point in the story.
The character Mowgli was nurtured, just not by humans. Therefore, it is not answer C. Also, he was not "rejected by society" or an "outcast" so it is not A or B. The answer is D. Mowgli is a man who has grown up according to the rules and customs of the jungle, as it says, BUT even though he is a man, his ideas of etiquette and communication are those of animals, rather than people. Because of this, Mowgli does not understand "the law of men" which refers to how humans behave, which causes him to not be able to "fit in" with society. It's basically a cultural barrier. The whole theme of the story is that he is still human, even if his way of life is different. Sometimes, certain cultures look down upon others because they have different customs, which is rude and ignorant. This story has a theme of recognizing people as humans in spite of cultural differences.