Good Good Y A B B Good X 0 Good X (a) ( b) Good Y Good Y B A B Good X 0 Good X ( c) (d) Figure 9.3.4 Original equilibrium at A, new equilibrium at B 16) Refer to Figure 9.3.4. Which graphs show the case where good Y is an inferior good? A) (a) and (b) 16) B) (c) and (d) C) (a) and (c) D) (b) and (d) E) none of the graphs