Which sentence explains the Perpendiculars to Parallels Theorem?

Which sentence explains the Perpendiculars to Parallels Theorem? A. In a plane, if a line is perpendicular to one of two intersecting lines, then it is parallel to the other line. B. If coplanar lines L and M are each perpendicular to the same line, then they are parallel to each other. C. In a plane, if a line is perpendicular to one of two parallel lines, then it is perpendicular to the other line. D. If two coplanar lines L and M are perpendicular, then the negative reciprocal of the slope of line L is the slope of a line that is parallel to line M.