Final answer:
The best example of a simile is 'The sun is like a big red balloon.'
Step-by-step explanation:
The best example that represents a simile is option C: The sun is like a big red balloon. A simile is a figure of speech that compares two unlike things using the words 'like' or 'as.' In this example, the sun is being compared to a big red balloon using the word 'like.'
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