单选题Which is true on the subarachnoid space in the vertebral canal（）。Alies between dura matter and arachnoidBup to subarachnoid space in the skull by the foramen magnumCdown the the height of the fifth sacral vertebralDterminal cistern is formed by the space below the second sacral vertebralEthe fluid in it can communicate with that in the center canal of spinal cord directly
单选题
Which is true on the subarachnoid space in the vertebral canal（）。
A
lies between dura matter and arachnoid
B
up to subarachnoid space in the skull by the foramen magnum
C
down the the height of the fifth sacral vertebral
D
terminal cistern is formed by the space below the second sacral vertebral
E
the fluid in it can communicate with that in the center canal of spinal cord directly
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