Suppose That the Inverse Demand for a Downstream Firm Is

Multiple Choice

Suppose that the inverse demand for a downstream firm is P = 150 − Q.Its upstream division produces a critical input with costs of C_U(Q_d) = 5(Q_d ) ².The downstream firm's cost is C_d(Q) = 10Q.When there is no external market for the downstream firm's critical input,the net marginal revenue for the downstream firm is:

A) NMR_d = 140 − 2Q.
B) NMR_d = 150 − 2Q.
C) NMR_d = 140 − Q.
D) NMR_d = 150 − Q.