Use Figure: the Market for Sandwiches

Use Figure: The Market for Sandwiches. What is the equilibrium price and quantity in this market?
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Figure: The Market for Sandwiches

A) The equilibrium price is $6, and the equilibrium quantity is eight.
B) The equilibrium price is $9, and the equilibrium quantity is 12.
C) The equilibrium price is $4, and the equilibrium quantity is 12.
D) The equilibrium price is $8, and the equilibrium quantity is six.