Which term refers to the sensation of dryness or roughness in the mouth?

The correct answer is b) Astringency.

Astringency refers to the sensation of dryness or roughness in the mouth, often experienced when consuming certain foods or beverages, such as tannin-rich wines or unripe fruits. This sensation is caused by compounds that cause contraction of the tissues in the mouth, leading to that characteristic dry feeling.

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