Answer:
If it is George Orwell's <em>Animal Farm</em> then his motto is "I will work harder"
Answer:
I would need to see a passage or a article here. I am not sure what your trying to convey.
A metaphor is a piece of figurative language that compares two unlike things without using the terms "like" or "as". Off the bat, you can eliminate B and C, because they include these words. Option A is a piece of prose, it makes no comparisons.
The answer is D, because it compares the subject, "I" (most likely a person), to a rock (which is not a person).