The tone and the fact that the narrator says "she'd miss me", drives you to think that the narrator assumes that she will never see Denise again, i.e option D.
Another good reason to obtain citation information:
So that you can properly cite the source of the information in you’re writing.
The answer is, "The princess's hard work and training paid off and she wooed all of the suitors at the ball."
The sentence should be: "The princess's hard work and training paid off; She wooed all of the suitors at the ball." or "The princess's hard work and training paid off. She wooed all of the suitors at the ball."
Hard working I'm 100 % sure!
