Global issues maybe? Perhaps poverty, health & wellbeing or global warming / climate change
Answer:
"You should volunteer to tutor! Imagine all of the students you could help with tutoring. I would want somebody who knows the subject to help me if I was struggling."
Explanation:
With pathos, you want to appeal to someone's emotions. You want the person to feel some sort of emotion.
The last sentence. All the others are incorrect with comma usage and/or terms of comparison.