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

The supply function for good X is given by Q_x^s = 1,000 + P_X - 5P_Y - 2P_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 = 100, P_Y = 150, P_W = 50, then the supply curve is

A) Q_x^s = 550.
B) Q_x^s = 150 + P_x.
C) Q_x^s = 550 + P_x.
D) Q_x^s = 350 + P_x.