Answer:
A.
Explanation:The colorless fluid, secreted by the ependymal cells of the choroid plexus of the brain ventricles and distributed in the brain and spinal cord is called the CSF. These fluids are absorbed in the arachnoid.
Its function is to provide nourishment,removes wastes,and maximum protection for the brain.
Generally the normal WBC count of the blood is between 5,000 and 10,000.This is the amount that is also present i CSF. Since the components are similar to that of the blood.Therefore the sample of the CSF is normal.
In SS,there is apoptoisis (death) of the PMNS,therefore this can not be correct. Macrophages rate increases in R.Arthritis, but decrease Neutrophil release.