What is the main idea of the passage? A. A brief history of the light bulb B. The early life of Thomas Edison C. Family of Thomas Edison D. Thomas Edison’s companyĐoạn văn20/62What is the main idea of the passage? A brief history of the light bulb The early life of Thomas EdisonFamily of Thomas Edison Thomas Edison’s companyGiải thíchĐáp án đúng là A