The detail in the text that supports the idea that the author altered the historical facts is that he states that Peter never expected his uncle to experiment with a kite and a key (option D)
A fiction is a story that includes details or stories that are not true. Fictional stories generally include events that did not happen to draw the attention of readers.
According to the above, it can be inferred that the author refers to Franklin's experiment with a kite and a key to give the story more credibility. However, this story is not a verifiable fact, so it can be said that the author altered this part of the story.
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