Which food listed is most consistently a rich source of flavonoids, a subclass of polyphenols?

• A. Tea (especially green and black), which contains high concentrations of flavonoids like catechins and theaflavins.
• B. Refined white sugar because it is manufactured from cane in a process that concentrates flavonoids into the final product.
• C. Saturated animal fats such as butter and lard because they are the richest dietary sources of flavonoids.
• D. Distilled vodka, because the distillation process concentrates plant-based flavonoids into alcoholic beverages.

Answer: (A)