The machine teacher's fault and repair indicate which concern in education?

Education depending too much on a technical system

The governing concept is the vulnerability created by excessive dependence on technology. Margie's education is organised around one mechanical teacher, so a fault in its geography sector immediately disrupts her lessons. She cannot simply continue with a human instructor or a nearby class; the County Inspector must be called to diagnose and repair the machine. Option A is correct because the incident shows that a system designed for efficiency can become fragile when its central device fails. The repair restores instruction, but it does not remove the underlying concern about dependence, isolation, and the need for specialised maintenance. The other options are unrelated: the old book is not made new, classmates do not increase, and no daily human teacher appears.

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