Which statement describes a similarity between the roman empire and the byzantine empire

After doing some research, I believe the choices for this question are the following: 

Both empires shared like laws and traditions.
Both empires originated in Western Europe.
Both empires required all citizens to be fluent in Latin.
Both empires considered the emperor the ultimate religious authority.

Among these statements, the one that describes a similarity between the Byzantine and Roman Empire is: Both empires shared like laws and traditions. 

Word of mouth.