Final answer:
The most effective strategy for proofreading essays is to remove words that don't add meaning.
Step-by-step explanation:
The most effective strategy for proofreading essays is option C: remove words that don't add meaning. By eliminating unnecessary words, you can improve sentence clarity and make your writing more concise and focused. This helps the reader better understand your points and ideas. For example, instead of saying 'She went quickly to the store,' you can simply say 'She went to the store.' This cuts out the word 'quickly,' which doesn't add any new information.
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