We can actually deduce here that the book that the author use in the passage is: Sibling relationships.
<h3>Who is an author?</h3>
An author is actually known to be a person who writes, publishes and sells the published book. Authors share their knowledge, expertise and experience through writing.
We see in the attached image the passage that completes the question.
Thus, the actual book the author used in this passage is that of sibling relationship.
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B
Eventually, the Nazis took over many of those parts of Europe.
Answer:
When Romeo and Juliet meet they speak just fourteen lines before their first kiss. These fourteen lines make up a shared sonnet, with a rhyme scheme of ababcdcdefefgg. A sonnet is a perfect, idealized poetic form often used to write about love. Encapsulating the moment of origin of Romeo and Juliet’s love within a sonnet therefore creates a perfect match between literary content and formal style. The use of the sonnet, however, also serves a second, darker purpose