C.
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Answer:
elastic force?
well I hope im giving you the correct definition...
something that is elastic can be stretched or compressed.
For example a bungee cord(search up). It resists the change of shape even when stretched and compressed. And because of that it applies a counter force in the opposite direction in which you would call a elastic force.
The effect of foreshadowing in Shakespeare's Macbeth creates a sense of tension and a slight sense of dramatic irony as many characters in the play are oblivious to their fate whereas the audience may know what is going to happen.