The following structures of the mammalian nervous system,from posterior to anterior,are laid out in the following order:

A)spinal cord,medulla oblongata,pons,cerebellum.
B)spinal cord,pons,cerebellum,medulla oblongata.
C)medulla oblongata,spinal cord,cerebellum,pons.
D)pons,cerebellum,spinal cord,medulla oblongata.