What habit did children develop because of telebooks?

Correct answer: Reading from screens

Telebooks were electronic books displayed on a screen, and the children of the future had become accustomed to reading them. Their regular learning depended on technology, so reading from a screen seemed ordinary and natural to them. This is why Margie found the old printed book unusual: its words stayed fixed on the page instead of moving or changing as they could on a telebook. Option B is therefore correct. Option A reverses the evidence, because paper reading belonged to the older form of education. Options C and D are also unsupported: the story does not say that children wrote on walls or learned only by listening. The question highlights technology's influence on everyday study habits.