Start with the parentheses 
        
                    
             
        
        
        
A or B ....it’s your choice
        
             
        
        
        
It would be a parallelogram 
        
             
        
        
        
That's the uniion of sets  B and C
that means inclde all the values of both sets (not meaning the ones common to both sets)
so that would include a,b,c,d, 0,a,2,b
a and b repeat so list them only once
that would be {a,b,c,d,0,2}
answer is 4th option
        
             
        
        
        
10 wins/ 6 losses= 1.667
13 wins/ 7 losses= 1.857..
32 wins/ 18 losses= 1.77..
6 wins/ 3 losses= 2
The last team has the highest win to loss ratio, and therefore has the highest winning percentage.
Final answer: Last team, 6 wins and 3 losses