Not realizing that its surface was hot, a woman has quickly withdrawn her hand from the surface of a ...

Not realizing that its surface was hot, a woman has quickly withdrawn her hand from the surface of a bowl that she was removing from a microwave.
 
  Which of the following phenomena has facilitated the rapid movement of her hand in response to the painful stimulus?
  A)
  Her midbrain has rapidly responded to the nociceptive stimuli and induced arm flexion.
  B)
  The withdrawal reflex of her peripheral nervous system has quickly mediated between afferent and effector neurons.
  C)
  The forebrain has mediated a protective spinal cord reflex.
  D)
  Her CNS has enacted a protective response received by neurons that innervate her arm muscles.