Read the following statements about the human nervous system.
(i) A multipolar neuron is with one axon and two or more dendrites, found in the cerebral cortex.
(ii) In resting condition, the sodium-potassium pump transports 3Na⁺ inwards and 2K⁺ outward the cell.
(iii) Midbrain and hindbrain form the brain stem including the cerebellum.
(iv) The pons of the hindbrain is directly connected to the spinal cord to control respiration.

How many statement/s from above is/are incorrect?