Select the sentence that is complete and properly punctuated. A.
Americans eat an average of three hamburgers a week the total number sold by McDonald's alone is equivalent to twelve hamburgers for every person in the world.
B.
Americans eat an average of three hamburgers a week, the total number sold by McDonald's alone is equivalent of twelve hamburgers for every person in the world.
C.
Americans, who eat an average of three hamburgers a week.
D.
Americans eat an average of three hamburgers a week; the total number sold by McDonald's alone is equivalent to twelve hamburgers for every person in the world.