A neurologist is explaining the structure of the central nervous system. Which statement best describes the function and composition of gray matter?

It contains neuron cell bodies, dendrites, and unmyelinated axons involved in processing and integrating information.

It contains mostly myelinated axons that transmit signals rapidly between different regions of the nervous system.

It forms the protective covering around the brain and spinal cord that prevents physical damage.

It consists mainly of connective tissue that supports and nourishes nervous system cells.