The diagram illustrates apparatus that was used to make lactose-free milk. The alginate beads do not react with any of these substances. X is an enzyme that catalyses a reaction involving one of the substances present in milk. Identify X and Y.
- AX: amylase, Y: glucose
- BX: amylase, Y: starch
- CX: lactase, Y: glucose
- DX: lactase, Y: starch