-Refer to the Above Graph to Answer This Question

-Refer to the above graph to answer this question.If the demand were to decrease by 200 units and the supply were to increase by 100 units,what would be the resulting equilibrium price and quantity?

A) $50 and 600.
B) $55 and 425.
C) $60 and 500.
D) $70 and 400.
E) $70 and 500.