How might altering the glycosidic linkage in lactose affect its digestibility?

• A. Changing the linkage from beta to alpha would make it more digestible by all mammals.
• B. Changing the linkage from beta to alpha could make it indigestible by most mammals.
• C. Changing the linkage from beta to alpha would make it indigestible only by humans.
• D. Changing the linkage from beta to alpha would have no effect on digestibility.

Answer: (B)