Which of These Statements About the Peripheral Nervous System Is

Which of these statements about the peripheral nervous system is correct?

A) The cranial nerves enter the brain through the spinal cord.
B) Efferent fibres carry sensory input to the central nervous system through the spinal cord.
C) The peripheral nerves are inside the central nervous system and carry impulses through their motor fibres.
D) The peripheral nerves carry input to the central nervous system by afferent fibres and away from the central nervous system by efferent fibres.