So you need 5 sentences with 2 words each.
Use a hook sentence, provide facts, dates, pictures and your sources.
"Heat", by Hilda Doolittle, is a really short poem with several characteristics. One of them is the amount of imagery that the poet uses to communicate not so much a message but the impressions generated by what is being perceived by the speaker. We do not know who this speaker is, or what the setting is, all we known is that most likely this person is experiencing a really torrid place, most likely the tropics, as this person speaks about fruit that falls from trees. Probably one of the most impressive images this author gives is the one about heat. The poet uses such words as "cut" and "rend open" to let us know one thing; that wherever this person is, the heat is really high. In fact, the image is so strong, that through the hyperbole of heat preventing fruit from falling, you cannot help but think about the thickness of it and you feel as if you were going through a curtain of it. This is why the correct answer is A: It emphasizes how intense and powerful the heat is.
The "Nut Graph" is known as the paragraph that helps to put the story in context, provides any additional information that may be useful for the reader and that can lead to a better understanding of it.
The Nut Graph is often the third or fourth paragraph of the news story and the information that contains is always related to how the context affects the reader and the story as well.
In journalism, it is used when the writer considers that the reader will need more context in order to understand why, what, who and how it happened, without really saying it, because this answers are normally given during the first and second paragraph.