The correct answer is C. Supports, explains, and elaborates on the thesis
Step-by-step explanation:
In a text or composition, the body is the main section because these include paragraphs and details that elaborate on the main point of the text or thesis statement. This means the body is essential for readers to understand the message the author wants to convey. Moreover, this important section is placed after the introduction that introduces the main point and before the conclusion that serves as a wrap-up. According to this, the body of a composition "Supports, explains, and elaborates on the thesis".