Answer :
Final answer:
Nathaniel Hawthorne's principal literary device was allegory and symbolism, enhancing themes of inherited sin and human nature in his works.
Explanation:
Nathaniel Hawthorne's principal literary device was the use of allegory and symbolism to add depth and complexity to his work. By incorporating these literary devices, Hawthorne effectively explored themes such as inherited sin, human nature, and moral ambiguity in his writings such as The Scarlet Letter and The House of Seven Gables.
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