please help me with this...

Answer:
A
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.
Answer:
I believe the answer is A.
Explanation:
A simile usually uses the words like or as when comparing two unlike things. The like in the sentence is an comparison . Its comparing Monty to a wild dog. To help you further here is an example:
"Life is like a box of chocolate" this is a simile
"My life is an open book" this is a metaphor. (Not comparing his life to a book, its using other words to express he has nothing to hide or his life is no secret)
The reason I used these two examples is because I wanted to get the point across of why those two are different and they can be easily mistaken as each other.
Hope this helped :)