Introduction. You state it in the introduction, so that you can state your claim first before the body paragraphs. You also should re word the thesis statement in the conclusion paragraph.
So only the people who are interested in your book will read. Mainly.
It caused climate change, pollution, and it breaks down the earth's atmosphere.
Answer:
The title of the text and the author.
Keep it short. 4-5 sentences.
Only include the important details from the passage in your summary.
The answer for your question is B: Formal