Which of the following statements are true of cerebrospinal fluid (CSF)? (Read carefully and select all of the correct statements.)

A)CSF is made from blood plasma by the process of diffusion.
B)The five ventricles of the brain all contain CSF.
C)CSF is reabsorbed into the blood from the ventricles.
D)The central canal of the spinal cord contains CSF.
E)The structures that form CSF are the choroid plexuses in the subarachnoid space
F)CSF is a circulating fluid, the tissue fluid of the CNS.