Final answer:
The term that best describes a lighthearted and humorous tone in a literary work is 'Comical'.
Step-by-step explanation:
The term that best describes a tone that is lighthearted and humorous in a literary work is Comical. When a text has a comical tone, it usually aims to provoke laughter and amusement in the reader. It uses techniques such as wordplay, exaggeration, and wit to create a light and funny atmosphere.
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