It’s a I hope this help you :)
        
                    
             
        
        
        
False. The urinary system does that not digestive syst.
        
                    
             
        
        
        
The most appropriate answer is D ! as other three are not related to cilia any way ! 
so D
if you want more info on this, comment !
        
                    
             
        
        
        
False because only if you smoke then yeah