I don't think it is B because the author mentions how he still hears the dragon in the wind so the knight keeps his sword sharp because he never knows if the dragon will show up again.
I don't think it is C because it suggests he is certain of a peaceful life. Although like mentioned before he keeps his sword sharpened for the thought of a dragon attacking so i think the peaceful life is not certain forever.
Finally I think the answer is not D because it does not portray in the story of the knight being a hero.
If I could ask the Queen anything..Id probably ask her if I can be a part in the castle, or like if I could work in the castle. I would ask her that because I would wanna have a job so I can pay bills when I get older and have money for collage.
Also, If I made like that much money and worked for her, Id be able to donate, and maybe buy a house. It will be a great opportunity to earn money for me to start collage and, pay bills and find a house. That's why and what I would ask the Queen.