I'd be more likely to go with the fourth option because more than the others, you'll have more in-depth characterization especially with the characters having a fight within themselves, especially Octavia because in this one, she has to have a chance of going with her beliefs and turning into a good girl versus picking some kind of a fame and fortune thing that will only stay on the outside of her. As in (man for/against himself.)

Having said that, the other choices are good, too. You can still do some kind of a characterization thing with them and since bringing a curse on Greg can lead the way to a good amount of guilt feelings, those are always fun to explore. Not a bad idea to include cursing goddesses, either, as that might attract a larger amount of readers than my choice.