The best answer to this question would be, "Whom would you like to invite to the party?". Whom is an objective pronoun.
I'd say letter choice C... and i luv moonlight sonota btw! <3
Can you explain how you would like me to answer this? Maybe with a little more background information
A protagonist is the hero of the story! Someone who does good, the antagonist is the villian or person trying to discourage the hero!