Answer: Option C..
controls autonomic nervous system and regulates thirst
Explanation:
Hypothalamus controls autonomic nervous system and regulates thirst because it is above the brain stem and it receive autonomic regulatory signals or information , then it then act to integrate and controls autonomic nervous system. The autonomic nervous system help to regulate different types of body functions like sexual arousal, heart rate, pupilatory rate, digestion rate , respiratory rate e.t.c.
 
        
             
        
        
        
DescriptionBiotic components, or biotic factors, can be described as any living component that affects another organism or shapes the ecosystem. So the answer would be 1 an 2