The Supply Function for Good X Is Given by Q_x^s

The supply function for good X is given by Q_x^s = 200 + 4P_X − 3P_Y − 5P_W,where P_X is the price of X,P_Y is the price of good Y,and P_W is the price of input W.If P_X = 500,P_Y = 250,and P_W = 30,then the supply curve is:

A) Q_x^s = 1,300.
B) Q_x^s = −700 + 4P_x.
C) Q_x^s = −550 + 4P_x.
D) Q_x^s = 150 + 4P_x.