How did Tommy feel about the old book?

Correct answer: Interesting and different

The governing concept is the contrast between a printed book from the past and the screen-based lessons familiar to Tommy and Margie. Tommy discovers the old book in his house and finds it unusual because its pages are printed on paper and remain fixed, unlike the moving lessons on a mechanical teacher’s screen. He is interested enough to show it to Margie and explain how children once studied from such books. Therefore, option B is correct: he considers it interesting and different. It is not described as ordinary, useless, or notable for being heavy. His reaction helps introduce the story’s central comparison between old and future education.