How could the historian better understand the reason for the cultural differences between ancient Romans and modern Americans? O A. Evaluate for bias by finding out which modern historians write positive portrayals about the Colosseum O B. Study historical context by learning more about the types of animals that fought in the Colosseum O C. Study historical context by examining letters written by Roman fans of the Colosseum D. Evaluate for bias by determining whether people's prejudices allowed them to tolerate slavery​