The correct answer is C. A thesis statement
Explanation:
An explanatory essay is a type of academical paper in which the author aims at explaining or providing information to the audience related to a main claim or thesis statement that shows the position of the author towards the topic being explained. Because of this, most explanatory essays contain an introduction in which the author needs to introduce the general topic and present the thesis statement for the reader to understand the focus of the essay, a set of body paragraphs that explain the thesis statement using detailed evidence and a conclusion paragraph that closes the essay, also it is common after the conclusion the author includes the works-cited list or a list with information of the sources used during the body paragraphs, including direct quotations and paraphrasing. Considering this, the element that should be included in the introductory paragraph of any explanatory essay is the thesis statement.
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For the next 71 days, Indian protesters at Wounded Knee would hold off the federal government at gunpoint. Media from around the world would give the siege day-by-day coverage. And Native Americans from across the nation would come to Wounded Knee to be part of what they hoped would be a new beginning.