100 POINTS TO RIGHT AWNSER!!

Which line is a graph of the equation y = –6?



Coordinate plane with the following lines graphed: Line A is a vertical line 6 units to the left of the origin; Line B is a horizontal line 6 units above the origin; Line C is a vertical line 6 units to the right of the origin; and Line D is a horizontal line 6 units below the origin.


line a



line b



line c



line d