Final answer:
The best fit synonym for 'medley' in the sentence is 'assortment'.
Step-by-step explanation:
The best fit synonym for the word 'medley' in the given sentence is 'assortment'. In this context, 'medley' refers to a mixture or collection of different types of food. 'Assortment' is a synonym that accurately conveys the idea of a varied and interesting selection of food at the picnic.
Learn more about Synonyms for the word 'medley' in English