Answer:
D, Keeping single-use items in their original packaging
Explanation:
By doing this, you are separating any food residue that may be left on the item away from the food you are preparing. 
A is wrong because the juices and contaminants of the raw food could get onto the cooked food. They must be stored separately.
B is wrong because you need to have separate containers for you cooked food, raw foods, and vegetables
C is wrong because of the same reason as A
and E is wrong because once hot food is cooled to room temperature, there is only a certain amount of time it can stay out before going bad
 
        
             
        
        
        
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
 
        
                    
             
        
        
        
It’s important for recovering drug users because while learning to deal with problems they will have better management Iver themselves and are less likely to relapse. hopefully that’s good!:))
        
             
        
        
        
I think ur answer would be a