What is the present level of agreement on the nature and scope of management's social responsibilities?

A) Wide-ranging disagreement
B) General agreement, except for labor unions
C) Moderate agreement
D) Complete agreement
E) General agreement in Europe, but not in the U.S. and Canada

Refer to Figure 2-15. Given that price is measured on the vertical axis, quantity is measured on the horizontal axis, and that the curves are downward-sloping, what type of curves are depicted here?