From what does the importance of a human teacher become clear in the story?

Correct answer: From comparison with the mechanical teacher

The governing literary technique is comparison and contrast. The story places Margie’s solitary lessons with a mechanical teacher beside Tommy’s description of old schools, where a human teacher taught children together. By comparing the two systems, the narrative reveals what machines cannot easily provide: personal guidance, emotional connection, immediate responses, and a lively social classroom. Therefore, option B is correct. The colour of an old book, the inspector’s name, and the size of a house do not explain the educational value of human teachers. The contrast between the two forms of schooling does.