The answer is temporal lobe. To simplify, the auditory neurons extending from the thalamus reach out with their axons to their primary auditory cortex in the temporal lobe. In addition, the temporal lobe of the cerebral hemisphere situated down on the side just forward of the occipital lobe. The temporal lobe comprises the auditory cortex which is accountable for hearing and it is also the site of the seizure commotion characteristic of temporal-lobe epilepsy.
        
             
        
        
        
B. skeletal and nervous system
        
                    
             
        
        
        
I think the best answer would be A. since the number of prairie dogs decreased from the picture on the left to the picture on the right. Hope this helped :p