The theme is the moral or the lesson of the story. After reading the story, which of the answers gives you a lesson that is universal (can apply to anyone) and fits with the story. For example, one could say that the moral of Finding Nemo is "always listen to your parents as they know best". No specific details like names or places are given in the theme.
Since they were more identificated with the indigenous people around them which suffered from different abuses from the Spanish, and they desired liberty for those who needed it and, they were not as powerful as the Spanish born in Europe.
Using force or trying to persuade someone through sarcasm or irony could be viewed as one of the worst ways to persuade someone into believing something you want to prove.
Time heals all wounds. Possible kindness is rewarded but the former makes more sense to me :)
