The Winner of the Men's or Women's Tennis Singles at the Canadian

The winner of the men's or women's tennis singles at the Canadian Open is paid twice as much as the runner-up, but it takes two players to have a singles final. This compensation arrangement is

A) always unfair.
B) fair by the results view because the players make a salary that is higher than the average Canadian and fair by the rules view because the players agree to abide by the rules of tennis.
C) fair by the results view because the prize money is not equally distributed, and fair by the rules view because the players voluntarily enter the tournament.
D) always fair.
E) fair by the rules view because the prize money is not equally distributed, and fair by the results view because the players voluntarily enter the tournament.