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Biology > Human biology > Central Nervous System + Peripheral Nervous System
The central nervous system (CNS) consists of the brain and spinal cord. While the peripheral nervous system (PNS) consists of the nerves that leave the spinal cord and go to other parts of the body.
First, PNS nerves pick up information from organs (e.g., the temperature of the environment through skin nerves) and sends it to the CNS.
The CNS then processes the information and sends the orders to the body's organs through the PNS. Therefore, the answer is A.