The reason why this man approaches Othello's home is that he was about to accuse him in stealing Barbantio's daughter. This conflict was set up because of Iago which can describe his character as a two faced liar that (even though he is such a liar) he reveals his sward in order to help Othello in this fight. And what about <span>Othello, I would say that he is his stoic self. Hope that will help you!
Honestly, all of them can. I would select them all. Context is the only one that’s iffy, but context is also important because words can have connotative meanings that alter their meaning and tone.