Which berry/leaf has anthocyanins, tannins, and flavonoids and is used for eye conditions, vascular disorders, diarrhea?

• A. Viburnum opulus (European Cranberrybush)
• B. Vaccinium myrtillus (Bilberry)
• C. Tilia europaea (Linden)
• D. Valeriana officinalis (Valerian)

Answer: (B)

The key idea here is recognizing a berry/leaf rich in anthocyanins, tannins, and flavonoids that has traditional uses for eye conditions, vascular disorders, and diarrhea. Bilberry fits best because its fruit is high in anthocyanins and flavonoids, which support microcirculation and retinal health, helping with eye-related issues and vascular strength. The tannins provide an astringent action that can help with diarrhea. Leaves and berries both contribute these compounds, aligning with the listed uses.

The other plants don’t align as well with this specific combination and set of indications. European cranberrybush has tannins and flavonoids but is not as strongly associated with eye or diarrhea uses. Linden and valerian are valued mainly for calming or sedative effects and do not carry the same traditional profile for eye/vascular support and diarrhea.