One of the clues is that the book states that it is a oak snake a non venomus snake
Answer:
Theme
Explanation:
The writers purpose is determined by the theme of the document. If we focus on the intend of the author writing then we are analyzing the theme of the document. The main theme is actually the intend of writing any story or plot. The writer may have many ideas before writing a document. He summarizes all his findings in a single document.
If you were to put the whole question that would help a lot and maybe put the options for the answers also.