Number 3 would be the only logical choice in my opinion because everything else would be in a narrative or story of some sort. Expository essays are exclusively informational.
It is ela. The punctuation go with the sentence or the grammar would be wrong! Good luck.
The death of Curly is an example of the law of club and fang. He learns that violence doesn't just come from men with clubs, it also comes from dogs with fangs.