The brain and the spinal cord constitute the

Explanation

The question is asking about the organs that make up the nervous system. The nervous system is responsible for communication throughout the body, and it is made up of the brain, spinal cord, and nerves. The brain is responsible for processing information and controlling body functions, while the spinal cord is responsible for transmitting information between the brain and the rest of the body. The question presents four options to choose from, which are: automatic nervous system, sympathetic nervous system, somatic nervous system, and central nervous system. The correct option is option D, which is central nervous system. The central nervous system is made up of the brain and spinal cord, and it is responsible for processing and coordinating information throughout the body. It is important to note that the autonomic nervous system and the somatic nervous system are two other divisions of the nervous system that work alongside the central nervous system. The autonomic nervous system controls involuntary actions such as heart rate and digestion, while the somatic nervous system controls voluntary actions such as movement of muscles. The sympathetic nervous system is a part of the autonomic nervous system that is responsible for the body's fight or flight response to stress. In summary, the brain and spinal cord make up the central nervous system, which is responsible for processing and coordinating information throughout the body. The autonomic and somatic nervous systems are other divisions of the nervous system that work alongside the central nervous system to control involuntary and voluntary actions, respectively.