By showing that the ghost is King Hamlet, the audience is immediately drawn to the story since they now want to learn what happened.
Explanation:
Hamlet, written by William Shakespeare is a play about the murdering of King Hamlet and all of the issues and problems that the killing creates.
By presenting the ghost in Act 1 and presenting it in a way that the audience will actually understand that it is the ghost of the late king, they are immediately drawn to the mistery and problems, they immediately infer that a murder has happened and they want to solve the problem along with the other characters in the play.
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