The comparative advantage in the given example, is that Chloe writes better than she draws. Comparative advantage refers to the ability of an individual to carry out a specific activity other than anything else. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
I think it's A. It is definally not the climax as this happens when Beowulf kills the monster. It's not the resolution either as it is the first part of the text. Also, exposition seems a little unrelated.