The answer would be D. If you were trying to cheer someone up after they had to kill their favorite dog you would change the subject and compliment something that the person has. A. and B. would be showing that he doesn't care and he should forget about it. C. gives an attitude that shows that life goes on and you shouldn't stay put on one part of your life. But none of those are the kind of the things that would cheer people up. D. is your best answer.
A better way to do this that is not plagiarism is by reading the paragraph source, putting it away so it's out of sight, then creating a paragraph of your own from scratch using the ideas that you just read.
