If the total product of two workers is 80 and the total product of 3 workers is 90, then the marginal product of the third worker is __ and the average product of the third worker is __.

(A) 270; 160
(B) 3.33; 10
(C) 10; 30
(D) 30; 10

If the total product of two workers is 80 and the total product of 3 workers is 90, then the marginal product of the third worker is and the average product of the third worker is .