Final answer:
Teacher comments made to organize lesson content can be used at the beginning and the end of lessons. Hence the correct answer is option A
Step-by-step explanation:
Teacher comments made to organize lesson content can be used at the beginning and the end of lessons. They serve as a guide for students and help them understand the structure of the lesson. For example, at the beginning of a lesson, the teacher might mention the main goals or learning objectives, while at the end, they can recap the key points or summarize the lesson.
Hence the correct answer is option A