I think its C. preparation.
It’s “true, eternal love” that keeps couples together decade after decade.Relationships “work themselves out” if “true love” is there.If you’re not happy alone, you’ll never be happy in a relationship.You’ll “never” be able to forget your ex who just dumped you.It's possible to fall in love “at first sight”.<span>If you look at someone and feel “This is it!”, it means this is it.</span>If it’s not “forever” it’s not “love”.Your life would be so much better “if only” you weren’t in this wretched relationship.Being in love is a necessary condition for a successful marriage.Being in love is a sufficient condition for a successful marriage.
Answer:
CSF ( Cerebrospinal fluid) is the colorless, clear fluid present in the spinal cord and brain. The ependymal cells present in the choroid plexus is responsible for the production of CSF.
Around 500 ml of the CSF is produced every day in the central nervous system. The main function of the CSF is the covering of the brain and cushions the central nervous system. This fluid allows the water medium for the diffusion of the chemicals and nutrients
