Respuesta :
The 1st paragraph of an essay typically contains the central idea of the text. This is because it is the introduction paragraph and it contains the thesis, which is what you plan to prove or accomplish in the body paragraphs, and then rephrase in your conclusion paragraph.
The main topic is generally stated in both the first and fifth paragraph. You introduce the main topic in The Introduction. (Hence the name) It is also usually at least reccommended if not required that you restate the main topic in The Conclusion.