Final answer:
The preposition in the sentence 'Mood is the overall feeling of a story' is 'of'. Prepositions show relationships between other words in a sentence.
Step-by-step explanation:
In the sentence 'Mood is the overall feeling of a story', the preposition is the word 'of'. Prepositions are words that show relationships between other words in a sentence. In this case, 'of' is used to link 'feeling' to 'story', indicating that the 'feeling' is specifically related to the 'story'.
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