Why does education seem incomplete despite the machine teacher’s efficiency?

Correct answer: Because efficiency does not replace human interaction and classmates’ company

The governing concept is that complete education includes relationships and shared experience, not only accurate delivery of lessons. Margie’s mechanical teacher works efficiently, gives assignments, and checks answers, but it cannot converse naturally, encourage her as a person, or provide the companionship of classmates. Option B is correct because it explains why technical performance alone is insufficient. Option A is false because the machine does give lessons. Option C is false because telebooks contain written material, and D is unsupported because Margie can read and study. The story therefore distinguishes efficiency from humane, socially rich education.