The correct option is D It is protective in function to physical injury
The brain and the spinal cord are parts of the central nervous system. The brain and the spinal cord are protected by skull and the vertebrae respectively against physical injury.
The brain is divided into forebrain, midbrain and hindbrain. The forebrain is further divided into cerebrum, thalamus and hypothalamus. The cerebrum is the largest part of the brain. It is divided into left and right hemispheres. They contain sensory, motor and association areas. These areas receive and process sensory and motor information.