Margie’s home schoolroom deeply shows which social result of technology?

Correct answer: Education becoming a private and isolated experience

The governing concept is the social isolation that can accompany highly individualized technology. Margie’s schoolroom is located in her home, and the mechanical teacher conducts lessons without a group of children sitting together. Thus education becomes convenient and individualized, but it loses the shared space, companionship, and social interaction of a common school. Option B is correct because it names this direct social result. Option A is unrelated, while C reverses the story’s development because mechanical instruction replaces human teachers. Option D is also opposite to the setting: printed books have become unusual, not common, in Margie’s world.