Zone 2 refers to areas in the cerebral cortex that are responsible for processing somatosensory information, which pertains to nerve areas.
Area 2 is one of the primary cortical areas of the cerebral cortex, particularly involved with processing somatosensory information such as touch, proprioception, and pressure. It receives information directly from the thalamus. When considering the options given, nerve areas best fit the description of Zone 2, as somatosensory processing is closely associated with the reception and interpretation of nerve impulses coming from sensory receptors throughout the body, particularly the skin.
This is consistent with our understanding of the cortical homunculus, which is a visual representation of the concept that different regions of the somatosensory cortex correspond to sensations from different parts of the body.