Johnny shot someone from the rival gang and Ponyboy ran away because he was upset with his brother Dally. Dally slapped Ponyboy because he was late.
B. A teacher travels each year to visit family in South Africa.
I'm not 1000% confident in this answer but I believe it's B) to inform readers about the tactics Sparta and Rome used to hold cities and their effectiveness
Researchers should be studying how brain chemistry is affected when children read about love in fairy tales.