Final answer:
A simile compares two unlike things using the words 'like' or 'as'. Option A, 'The dog was as sweet as pie' is a simile.
Step-by-step explanation:
A simile is a figure of speech that compares two unlike things by using the words “like” or “as.” In this case, option A, “The dog was as sweet as pie,” is a simile because it compares the sweetness of a dog to the sweetness of a pie using the word “as.”
Options B and C, “I am a rock” and “The wind is a lion,” are not similes because they do not use the words “like” or “as” to make a comparison.
Learn more about Similes