Hygienic bees that uncap honeycombs containing diseased larvae and drag the larvae out of the honeycomb were c

Question

Hygienic bees that uncap honeycombs containing diseased larvae and drag the larvae out of the honeycomb were crossed with non-hygienic bees that leave diseased larvae in the honeycomb. The resulting bees exhibited various behaviors including the hygienic behavior, the non-hygienic behavior, uncapping the honeycomb but leaving the larvae in it and only dragging larvae out of the honeycomb if it was uncapped for them. What is the point of this experiment?

There are genes that control the behavior of honeybees and these genes can be adaptive.

You can get honeybees to do all sorts of things if you train them properly.

Fungal diseases are particularly detrimental to honeybees.

One quarter of the bees exhibited each type of the behavior.

Answer 1

It's A.  As the bees were not trained, the behavior must be under genetic control.  The genes must be adaptive (or at least not detrimental), or they would be eliminated from the population by selection.