In the old school how was the teacher present before children?

Correct answer: As a living person

The governing concept is the contrast between traditional classroom teaching and future machine-based instruction. In the old kind of school remembered in the story, children went to a common classroom where a human teacher stood before them and taught them directly. The teacher was therefore a living person, not a screen, a mechanical device, or a book. Option C is correct because it states this clearly. Options A and B describe forms associated with technological instruction, while option D is merely a learning object and cannot perform the responsive work of a teacher. The question tests a basic detail that supports the story’s comparison.