Answer:
The reason why the author used:
"He smiled and gave her an apple, then took the teacher apart " was:
B: To gain the readers attention
A: To tell the reader that the teacher was not human
Step-by-step explanation:
The reason the author includes the prelude is that he had the intention to hook the reader and awaken its interest in reading the story. Also to point out that the teacher was not human and could be taken apart. This is a very effective way to achieve a declaration of intention in a text or to suggest the text's topic indirectly.