Recall the three-member council considering three alternative welfare policies in Section 4.C. There, three councillors (Left, Center, and Right) considered policies A and D in a first-round vote,...

Recall the three-member council considering three alternative welfare policies in Section 4.C. There, three councillors (Left, Center, and Right) considered policies A and D in a first-round vote, with the winner facing policy G in a second-round election. But no one knows for sure exactly how many councillors have each set of possible preferences. The possible preference orderings are shown in Figure