When a Honey Bee Scout Returns to the Hive, It

When a honey bee scout returns to the hive, it will perform a round dance to indicate that the nectar is close, while the waggle dance indicates the nectar is distant to the hive. This dance is an example of:

A) sign stimuli linked to social interaction.
B) migratory behavior stimulated by environmental changes.
C) insight learning based on trial and error.
D) a physiologically meaningful stimulus (food) and an irrelevant stimulus (dance) .
E) optimal foraging dependent on cooperative social behavior.