They didnot understand their situation in life,
The meaning for preheat is <span>heat beforehand.
Your answer is <em>heat beforehand </em>
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The answer is C that's the only one that makes sense and the context clues help with the meaning
All of these could be considered an "author's purpose". An author is technically anyone who writes anything, therefore the purpose of writing is theoretically limitless. If you have to choose one of these, however, it would be "to remind".