Answer:
He uses the sword fight to depict conflict.
Explanation: If you are referring to the sword fight that they had, they used the stage direction to show that Mercutio was disgusted of tybalt, and was mad, and stabbed him through Romeo's arm. So a flat out answer, Shakespear uses the stage directions of Mercutios emotions and movements to show conflict between mercutio and tybalt, leading to tybalt stabbing mercutio.
External conflict is outside influences such as two people in a fight or argument or man vs animal.
I'd say the answer is the final one, or D. The story states the commendations that Dr. King gave Lincoln, the one who made the Emancipation Proclaimation and freed hundreds of thousands of slaves, and the joy and happiness he feels knowing that slavery was abolished.