Choose the statement that best applies to the thesis of the student's response. a. the response contains a clear thesis statement that expresses the main idea and can be supported or proven with textual evidence. (example: brutus and caesar, though on opposite sides in the play, are not entirely different.) b. the response contains a thesis statement, but it does not clearly express the main idea and cannot be supported or proven with textual evidence. c. the response does not contain a thesis statement.