Answer:
Yes. She is guilty of patchwork plagiarism.
Explanation:
According to the text in the question, Sara has used large sections of three different sources by cutting and pasting them. She does not cite the sources and does not make an effort to use her own words or to use only a couple of lines from each source. When someone copies large portions of two or more sources and presents the result as their own work, we have a case of patchwork plagiarism. Therefore, Sara is guilty of that kind of plagiarism.