3. What is the mixed-strategy equilibrium?- find out the probability, x and y. O a. {(x, y). (1-x, 1-y)) = {(2/3,5/6), (2/3, 1/6) } O b. {(x, y). (1-x, 1-y)) = {(1/6,1/3), (5/6,2/3)} O c. {(x, y). (1-x, 1-y)) = {(1/6,2/3), (5/6,1/3)} O d. {(x, y). (1-x, 1-y)} = {(5/6,2/3), (1/6,1/3)} 4. What is th