Answer:
I'm pretty sure the best answer would be D.
Feel free to correct me if i'm wrong cause i'm not 100% sure..
Because people are dying or getting ill. And you wouldn't like you or your friends getting hurt so don't hurt others. Save yourself and others.
She has some regrets about not spending more time with her grandfather.
I believe this is the answer because she talks about how their was a slight language barrier and she was preoccupied with life but now that he is gone she wishes she could know more about him.