The first option which is perseverance leads to success.
“Courage. Like pretty much every great hero, Perseus is incredibly brave. No matter how dangerous the monsters in his path, Perseus boldly marches forward.”
D; it requires the least exact detail. It is more likely to have "fluff" that can be taken out by paraphrasing. A and B are better for direct quotes and C requires jargon and in-depth explanations.
