His purpose in delivering the sermon is to warn his congregation in particular, and presumably, by extension, his nation as a whole, that they must repent of their sinful ways and turn to God for forgiveness before it is too late.
The author wants the characters that they make to have different characteristic (ie personality traits). Your answer is A. different people in the story.
B. This Monday, I danced with Dolly.
I believe the answer is C
