Final answer:
The nervous system is divided into central and peripheral systems, where the peripheral consists of the autonomic and somatic systems.
Step-by-step explanation:
The nervous system is intricately organized into various parts with specific functions. The central nervous system (CNS) comprises the brain and spinal cord. The peripheral nervous system (PNS) includes all neural elements outside the CNS. The PNS is further divided into two main parts: the somatic nervous system (SNS) and the autonomic nervous system (ANS). The SNS is responsible for voluntary movements and sensory information processing, whereas the ANS controls involuntary body functions. Within the ANS, there are two subdivisions: the sympathetic and parasympathetic nervous systems. The sympathetic division prepares the body for stressful or emergency situations, often referred to as 'fight or flight' responses, while the parasympathetic division predominates during 'rest and digest' periods.
Based on the provided information, the correct organization of the nervous system is the autonomic, peripheral, and sympathetic (option 3), as the autonomic nervous system is a part of the peripheral nervous system and includes both sympathetic and parasympathetic branches.