The receives messages from muscles, tendons, joints, and structures in our ear to control balance, coordination, movement, and motor skills. cerebellum sensory cortex substantia nigra ventral tegmental area

The answer is cerebellum. 

The cerebellum is located at the lower area of the rain. It is easily identifiable because of its unique shape. It plays an important role in voluntary movements like walking and writing because it is responsible for balance and coordination.  It receives messages from the sensory systems of the spinal cord and parts of the brain. 

The correct answer is d