Final answer:
A cause-and-effect relationship in a play occurs when one action leads to another action as its effect, driving the plot and developing the themes and characters.
Step-by-step explanation:
A cause-and-effect relationship in a play occurs when one action leads to another action as its effect. For example, in William Shakespeare's play Macbeth, the murder of King Duncan by Macbeth is the cause of Macbeth's descent into madness and eventual downfall, which is the effect. The cause-and-effect relationship helps to drive the plot and develop the themes and characters in a play.
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