Question

what are three to nine chain carbohydrates called? polysaccharides monosaccharides trisaccarhides oligosaccharides

Explanation:

Carbohydrates are classified by the number of sugar units: monosaccharides are single units, oligosaccharides are 3-9 linked units, polysaccharides are 10+ units. "trisaccarrhides" is a misspelling and not the correct term for this range.

Answer:

oligosaccharides