How does the mention of the old human teacher create irony in the story?

Future children find old teaching strange, yet it seems more human

Irony occurs when the apparent meaning or expectation is contrasted with the deeper truth. In the story, Margie and Tommy initially regard old schools, human teachers, and shared classrooms as strange because their own education is controlled by machines. However, readers gradually recognise that the supposedly old-fashioned system offered companionship, discussion, and a more lively human experience. The contrast makes the advanced future system seem less satisfying than the past. Therefore option A is correct: the children find the old method unusual, yet it appears more humane. Option B reverses the story's contrast, while C and D contradict important details about old schools and Margie's feelings.

This is a Class 9 English question. Chapter: The Fun They Had. Topic: the importance of human teachers.