Revision involves clarifying purpose and meaning.
All other choices would be incorrect because they are a part of the process of editing.
Answer:
2
Explanation:
The writer thought Caesar was too ambitious
No, it does not according to the study. the study states it is just a placebo effect (it works because you expect it to.)
C) thesauruses
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The heading informs the reader that the text will focus on a specific school.