What reversed relation is seen in the repair of the mechanical teacher?

Correct answer: The machine controlling study itself depends on human correction

The governing concept is irony created by dependence. In Margie’s world, the mechanical teacher appears to be the authority that controls lessons, tests, and the pace of study. Yet when its Geography sector is unsuitable and begins giving Margie work that is too advanced, the machine cannot correct itself. A human County Inspector must open it, adjust it, and repair the problem. Option A states this reversal accurately: the device that governs a child’s education depends on human knowledge and intervention. Option B exaggerates the children’s role, while C and D describe events that do not occur. The scene quietly shows that advanced technology remains subject to human judgment.