What do both the narrator and readers learn from the events described in "The Strangers That Came to Town"?

A. It is wrong to stereotype people just because they seem different.

B. You should only play practical jokes on people who know you and understand your sense of humor.

C. It is best to be kind to others because crossing the wrong person can be quite dangerous.

D. Embarrassing one's parents is far more shameful than being cruel to strangers.