Answer:
The correct answer is D. The thesis statement is typically found in the introduction of an informational text, and it should clearly state the author's specific ideas about the topic.
Step-by-step explanation:
The thesis statement is usually a single sentence that expresses the author's main argument or point of view.
Option A is incorrect because while the author may introduce the topic in the first sentence of the introduction, this is not necessarily the thesis statement.
Option B is incorrect because the summary of supporting details in the conclusion is not necessarily the thesis statement. The thesis statement should be a clear and concise expression of the author's main argument.
Option C is also incorrect because while each body paragraph may begin with a topic sentence that supports the thesis statement, the thesis statement is typically a single sentence in the introduction.