The Market for Soybeans Is Characterized by = 18

The market for soybeans is characterized by = 18 - P_s and
= P_s - 0.5P_c, where Q_s is the quantity of soybeans in millions of bushels, P_s is the price per bushel of soybeans, and P_c is the price per bushel of corn. The market for corn is characterized by
= 18 - P_c and
= P_{c -} 0.5P_s, where Q_c is the quantity of corn in millions of bushels. In general equilibrium, the equilibrium quantity of corn is _____ bushels and that of soybeans is _____ bushels.

A) 6 million; 6 million
B) 9 million; 9 million
C) 6.5 million; 6.5 million
D) 16 million; 16 million