How is the need for a human teacher understood through Margie's experience?

Correct answer: She does not get human support while studying alone with a machine

The governing concept is learning as a human as well as an academic experience. Margie does receive lessons from the mechanical teacher, so the problem is not that she never studies or that the machine has no educational function. Her difficulty is that she studies alone and receives no warm human presence to answer sensitively, encourage her, or share the experience of learning. She becomes curious about the old schools because children learned together with human teachers and classmates. Therefore, option B is correct. Option A does not explain the need for a teacher, C contradicts the story, and D is false because Margie begins to imagine old schools as real and attractive. Her loneliness makes the need for human support clear.