Concept:The word “this” refers to the disturbance Othello has just interrupted.Explanation:Othello enters and sees a noisy fight taking place among his men.He calls it a “barbarous brawl” and demands to know who started the fight.His exact question is: “Who began this?”In the context of the scene, “this” clearly points to the brawl happening before him.It does not refer to theft, war, or the ringing of the bell.Answer:D. Brawl