Polyhydric alcohols are called because they contain?

Alcohols are a class of organic compounds that have a bond between the carbon atoms in the carbon skeleton and the functional group of alcohols -OH (hydroxyl group). If we consider the criterion of the number of functional groups, then alcohols are divided into monohydric (with one hydroxyl group) and polyhydric (with two or more hydroxyl groups).
So the answer is correct.The rest of the options are not suitable, because the number of carbon atoms is not reflected in any way on the mono- or polyatomic alcohols



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