I want to say the answer is A
My explanation:
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.
Therefor I believe A is left as the best option.
I hope this helps, have an amazing day :)
