16. Consider a public good and two consumers. Suppose the two

marginal benefit curves are downward-sloping, linear, and

parallel (i.e. the slopes are equal) but they do not coincide.

Marginal benefit (depicted on the vertical axis) and quantity

(depicted on the horizontal axis) cannot be negative. The

aggregate marginal benefit curve

A. has a kink at an interior point (i.e. a point at which quantity and

marginal benefit are both strictly positive).

B. has a vertical section on the vertical axis.

C. has a horizontal intercept equal to the sum of the two individual

horizontal intercepts.

D. has a vertical intercept equal to the greater of the two individual

vertical intercepts.

E. is a straight downward-sloping line without any kinks.

F. is a rectangular hyperbola.

G. is a quadratic function.

H. coincides entirely with the marginal cost curve.