College Composition CLEP Prep Practice Exam

A thesis statement is a sentence or phrase that summarizes the main point or argument of an essay or research paper. This statement should be clear, specific, and supported by evidence throughout the body of the paper. Option A is incorrect because a conclusion is a summary of the main points of the essay, not just the main argument. Option B is incorrect because an introduction is the opening section of an essay, not a summary of the main argument. Option C is incorrect because a question is not a statement and does not express a clear main argument. Therefore, D is the correct answer.