Option D is correct.

When the pollen baskets in the legs of worker bees are broken by certain means, they cannot be collection pollens from flower.

These structures are essential for holding and carrying pollen back to the hive. Without the baskets, the pollen falls off easily as they fly, so they can’t gather or transport enough to support the colony. Pollen provides protein and other nutrients that are essential for feeding the larvae and supporting the health and growth of the colony.