C. is the correct answer choice.
A, the protagonist.
The protagonist does the most deeds or heroic things in the story, or is the person who is mainly talking and doing things in the story.
The right answer is "A. The clergy "
You should be referring to the quote from "The Canterbury Tales" where the word gold is used to represent the clergy in all its purity that leaves it in such a high standard that nothing can reach it, just as gold can not be attained by rust.
When High Horse goes to the girl in order to steal her, he finds out that her parents have tied her up using leather ropes so as to prevent anyone from kidnapping her. High Horse uses his knife to cut the ropes, but accidentally cuts the girl on her thigh, which causes her to scream in pain. This wakes up her parents, who get many people to help them chase down High Horse and his helper, Red Deer.