I would say within the space C
(A) cells are the transitional epithelium cells, there resist to the acidity of the urine. It protects smooth muscle cells (B) responsible for the bladder contraction and the release of the urine by the urethra.
the C space represents the intern cavity of the bladder where the urine is supposed to be stored waiting for the micturition (urination).
        
             
        
        
        
I believe for number 1 the answer is A 260 
        
                    
             
        
        
        
Geo wild card spot on my a open relationship between the two of you are not up for
        
             
        
        
        
Answer:
B) venous blood and aveolar 
Explanation:
Partial pressure of carbon dioxide in the aveolar is the lowest, it is 40mmHg (millimetre mecury ) while the partial of carbon dioxide in venous blood is the highest at 45 to 50 mmHg (millimetre mecury)