Which three events in Act 2 serve to increase the level of suspense in the play?

In Act 2, the tension escalates with the arrival of the ghost, which heightens the atmosphere of uncertainty and fear. Additionally, the confrontation between characters, particularly when secrets are revealed, raises stakes and creates a sense of impending conflict. Lastly, the use of dramatic irony, where the audience knows more than the characters, amplifies the suspense as viewers anticipate the consequences of the characters' actions.