B.
Cassius and Brutus were arguing about something and created tension between the two. Later on, miscommunication and undefined leadership led to a mistake. All of this would lead to a struggle when facing Antony's army.
Answer: a. onomatopoeia
Explanation: onomatopoeia is basically words that are sound effects. BAM is a great example of onomatopoeia
1. They help the setting become more realistic.
2. They could even help the main character on stage feel less anxious, since they're not the only one up there.