Number one is impossible to be considered right, because those aren't King's ideas. Number two isn't the right answer because this excerpt doesn't talk about greed or evil. Number four isn't the correct answer, because the text doesn't talk about wisdom or experience, but it talks about the way in which each person can enrich him or herself through helping others.
A good intensive pronoun to use is: "She baked the cake for my birthday herself." Herself is an intensive pronoun, and used in the sentence. Hope this helps!:)
