How does Margie and Tommy's discussion while reading the old book support the need for human teachers?

Correct answer: It shows that dialogue deepens understanding

The governing concept is that learning becomes richer through interaction, questioning, and shared interpretation. While reading the old book, Margie and Tommy do not merely receive information; they compare the unfamiliar school system with their own experience, ask questions, react to one another, and imagine how children once learned together. Their conversation creates curiosity and helps them understand the emotional and social value of schooling. Therefore, option A is correct because dialogue can clarify ideas and deepen understanding. Option B is too extreme, since books can be useful; C contradicts the children's active questions; and D reduces the discussion to boredom rather than learning.