Answer:
A
Step-by-step explanation:
A simile compares two things using the words "like" or "as".
A: Monty dashed around the backyard like a wild hog rooting for food.
This compared Monty to a wild hog using the word like.
B: My cat has trained my dad to follow its every command.
No comparison, and no like or as.
C: This kitchen was torn apart when my brother decided to cook dinner.
This has no comparison, and no like or as.
D: Ocean waves lifted the fragile boat, and set it gently on shore.
This sentence also has no comparison, and no like or as.
A is the only choice that had a comparison, and it used the word like. Therefore, it is the example of a simile.