Read the passage from the myth of Romulus and Remus.

The founding of Rome revolves around two orphan boys named Romulus and Remus. Legend says that the boys were raised by a mighty wolf. The boys’ mother was murdered by an evil king named Amulius. The king then threw the two babies into the Tiber River. They washed up onto the banks of the river, where the wolf found them. Seeing the crying babies, she took pity on them. She gently picked them up in her teeth. She took the babies to her cave and fed them. She cared for them for years. The boys grew bigger and stronger. Eventually, a herder found the boys and took them home. He and his wife raised the boys. The boys decided to build a city where the wolf had fed them. However, Romulus and Remus fought over whom the gods favored. In this fight, Romulus killed Remus. Then Romulus founded Rome.

What detail about the founding of Rome is explained by the myth of Romulus and Remus?

A: the location of the city
B: the date of the city’s founding
C: the structure of the city
D: the reason the city was founded