A. a place that illegally served alcohol during Prohibition
What are the implications of cashless society?
Benefits of a Cashless Society
Paper trails: Financial crime should also dry up. It is harder to hide income and evade taxes when there's a record of every payment you receive. Money laundering becomes much harder if the source of funds is always available. No cash management: It costs money to print bills and coins.
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I would say the correct answer is B. primitive man.
The point of the entire novel is that Buck is fighting his urges to go to the wilderness and succumb to his wild identity of a wolf. Thus, dreaming about the primitive man clearly portrays his struggle between his two identities, that of a domesticated dog and that of a wild wolf.