How does the variability of the head group in sphingolipids lead to different classes?

• A. Only phosphodiester linkages lead to different classes of sphingolipids.
• B. Different chemical groups can attach via phosphodiester or glycosidic linkages, creating distinct classes of sphingolipids.
• C. Only glycosidic linkages lead to different classes of sphingolipids.
• D. The head group variability does not affect the classification of sphingolipids.

Answer: (B)