In long-run equilibrium with trade, losses from import competition will force some firms to ______________, increasing demand for the remaining firms' output, which will then cause their demand curves to become ______________ , due to the increased variety of products from _______________.
a. lower prices; more inelastic; new firms entering the industry.
b. leave the industry; flatter; foreign firms.
c. lay off workers; more elastic; the research and development departments in firms.
d. raise prices; steeper; new firms entering the industry.