Choose a word that describes of someone smart but sneaky

By comparing part 1 and 2 of polar opposites what does it mean by polar opposites

Fortify is a verb that means “to protect and strengthen.” a fortifications is a that means something that protects.

Discuss the theme of outcasts in these chapters in at least two hundred words. what does it mean that the church takes in people that the clan rejects? how is nwoye an outcast? how does the clan treat the missionaries as outcasts?