Which of the following statements is correct?

A) The gray matter of the cerebellum is referred to as the arbor vitae or the "tree of life."
B) The white matter of the cerebrum consists of neuron cell bodies, dendrites, unmyelinated axons and neuroglia. Myelinated axons and neuroglia can be found in the gray matter.
C) The white matter of the spinal cord has a characteristic butterfly shape.
D) The gray matter of the cerebrum consists of neuron cell bodies, dendrites, unmyelinated axons and neuroglia. Myelinated axons and neuroglia appear white and are insulated.