Which of the Following LEAST Exemplifies a Topic in the Field

Multiple Choice

Which of the following LEAST exemplifies a topic in the field of ethology?

A) The ability of an insect to find its way home after foraging
B) The ability of a pigeon to learn a delayed-response task in the laboratory
C) The ability of birds to learn the position of the celestial pole in the night sky
D) The ability of a chimpanzee to recognize the aggressive facial expression of another chimpanzee