Which statement about glycosidic linkages can be either configuration?

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Glycosidic linkages can be formed in two different orientations at the anomeric carbon: alpha or beta. In simple terms, the configuration refers to how the substituent that forms the glycosidic bond is positioned relative to the ring. An alpha linkage has the anomeric substituent on the opposite side of the ring from the CH2OH group, while a beta linkage has it on the same side. Monosaccharides in solution can interconvert between these forms (mutarotation), but once a bond is formed, that linkage type is fixed for that bond. This is why you see disaccharides and polysaccharides with either alpha or beta linkages—different polymers use different configurations, affecting properties and digestion. For example, starch contains alpha linkages, whereas cellulose contains beta linkages. Therefore, a glycosidic linkage can indeed be either configuration.