The athlete is doing work because he prevents the weight from falling downward
        
             
        
        
        
I think the correct answer from the choices listed above is option B. It is the electrons that  flow because of electrical attraction and repulsion causes an electric current in a wire. Electrons, which continuously move in wire, are called Electric Current. Hope this answers the question.
        
                    
             
        
        
        
Answer:
C
Im not totally sure but that's what my science teacher taught me sorry if is wrong