Answer:
C
Explanation:
This tries to turn you against dogs, and does not give you the whole truth about the subject.
Answer:
eaten
Explanation:
She has just eaten breakfast.
Answer:
Unfair treatment and cheap labor made it nearly impossible for immigrants to achieve the American dream.
The answer would be the last one, leave it as is. B and C change the meaning of the sentence entirely, while A sounds unnatural and is too verbose.
Hope this helps! :)
