The topic sentence is usually always in the first sentence of a paragraph. If you are meaning the book or any representations of the novel
Since this drawing is his way of reminding her that she and their garden are "as safe as a missel thrush", it makes her one of the many creatures whose secrets he keeps faithfully. So, having that in mind, I would say the correct answer is A) his trustworthiness.
Answer-
I think i dont know the answer but i will try
To help build interest into the climax of the story, giving the story its thrill.
She is vindictive toward Ivan while pretending to be worried about him, Thus reminding him of how his family has never forgiven him.
