The third, and final, branch of optimism that solves the problem of evil would be Compensatory Optimism.
This says that there’s evil but it simply balances out the picture. The good compensates for the evil. Overall, the good outweighs the existence of evil.
Example from the story would be the sudden "revival" of the many characters in the story: Pangloss, Cunegonde, the Baron. They were killed off just to come back and it seems that there was no talk about it, as if they were not dead in the first place.