I'm pretty sure that the answer is C. 
        
                    
             
        
        
        
Just go look on some of the questions on Bradley I'm sure you'll find the answer there
        
             
        
        
        
I just needs points youknowwhatimsayinnnnnnnnnn? ~
 
        
             
        
        
        
Answer:
 Filtration 
Explanation:
look at the image closely that's the first step in treating water from a river or lake.
♡hope this helps
 
        
             
        
        
        
Answer:
Family practitioners and obstetrician-gynecologists, or OB-GYNs
Explanation: