The type of figurative language that the poet use in these lines is Metaphor that compare the laughter to something valuable.
<h3>What is a Metaphor?</h3>
As a figure of speech, its makes a direct comparison between elements that are not related in order to create an image in the reader's mind.
In the lines 8 and 9 from the poem, the poet used a Metaphor by comparing the laughter to something valuable.
Therefore, the Option C is correct.
Read more about Metaphor
<em>brainly.com/question/933951</em>
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