C. Double-meaning pun
In this pun, the word grave has a double meaning. It can refer to either the situation being serious or the hole in which the dead are buried. Both relate to the situation and therefore makes this a double meaning pun.
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If I keep spending more money than I am earning, my bank account will continue depleting.
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Depleting means reduction in something or act of reducing it .
Answer:
hyperbole ~ exgerration
imagery ~ using five senses to create a mental picture
alliteration ~ repeating the same sound at the start of each word.