Pathos is a Greek word that refers to suffering or pain, so "emotional" would be the best fit here.
Hope that helped =)
I believe the right answer is C. Hope this helps!
You can highlight and annotate things and put them in direct quotes if you are sealing to give this person credit or reference them in your writings. but otherwise while doing research you shouldn’t be to worried unless you are claiming it as your own work with going no credit