Brenda's Pastry employs two workers who produce 4 dozen pastries per hour. After Brenda hires a third worker, the number of pastries produced increases to 7 dozen per hour. Because the marginal product of the third worker is _____ than the average product of two workers the average product must _____.

(A) greater; rise
(B) greater; fall
(C) less; fall
(D) less; rise