How does the author introduce and develop the main ideas in this text? A) The author establishes his content-knowledge and gives examples of the various topics within disability inclusion. B) The author uses definitions to explain key concepts and presents central questions to develop content understanding. C) The author presents an objective assessment of the consequences that limited access will have on people with disabilities. D) The author provides a chronology of the ideas and events that highlight the progress made in policies and procedures for people with disabilities.