It's b I think but if I'm wrong my b
        
             
        
        
        
Look at there paper and make sure the person you copying is a smart student
        
                    
             
        
        
        
B. Both pairs of opposite sides are parallel.
        
             
        
        
        
Others are unable to answer your question if you do not give them more information regarding what you want to be answered. My suggestion is to edit your question so it can be answered properly.