Answer:
1, 3 and possibly 5. I'm not entirely sure though :)
The answer you might be looking for is that, for one, she will feel guilt over not riding with her sister anymore, and that she might experience some health issues because she doesn't ride anymore with her sister. In order to avoid these consequences, Janna should look into other sports or activities that she can balance out with her job and her sister.
The answers are, acid rain, respiratory distress, and global warming.
The answer is B. Underline.
Hope this helps!!! : )