Why does the county inspector not become a substitute for a human teacher?

Because he repairs the machine, not regular teaching

The governing distinction is between technical maintenance and sustained teaching. The county inspector visits Margie's home because the mechanical teacher is malfunctioning. He examines the machine, adjusts its geography sector, and restores its operation. His task is therefore repair, not the continuing human work of explaining lessons, observing pupils, encouraging them, or building classroom relationships. Option A is correct. Option B is false because he does not teach the old textbook. Option C is false because he is an adult official, not a classmate. Option D is unrelated because the story does not present him as a builder. The episode shows that fixing educational technology cannot replace the personal role of a teacher.

This is a Class 9 English question. Chapter: The Fun They Had. Topic: the importance of human teachers.