If an Animal Accidentally Steps on a Mound of Fire

Multiple Choice

If an animal accidentally steps on a mound of fire ants,it will have hundreds of stinging ants crawling far up its leg almost instantaneously.The ant colony's quick response is most likely due to pheromones from

A) disturbed ants initiating learned group behavior.
B) the animal initiating imprinted "quick response" ant behavior.
C) disturbed ants initiating fixed behavior.
D) both the animal and ants initiating fixed behavior.