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Mirepoix (pronunciation: meer-PWAH) is the aromatic flavor base made by lightly cooking onions, celery, and carrots. ... Mirepoix is traditionally used as a flavoring ingredient, which means the vegetables are typically strained out or removed from the final dish before the end of the cooking process.

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answer c

the correct answer would be "the amiens cathedral"

i believe their role is to instruct certain sections on when they are to join and when they are to stop