Answer:
B). Mark Antony.
Step-by-step explanation:
Characters play a crucial role in the effective portrayal of the narrative. There are multiple types of characters presented in a literary text which may include round or flat characters, static or dynamic characters, protagonist or antagonist, etc. Flat characters are described as the characters who do not grow or evolve during the course of the story or narrative which is vice versa to round characters who are developed and curvilinear characters assisting to facilitate the plot.
As per the question, in "The Tragedy of Julius Caesar", Mark Antony does not exemplify a flat character as he is a well-developed character who evolves throughout the narrative. He takes his stand on the allegiances which bring the action to the tragedy. Thus, option B is the correct answer.