Segment AB is on the line y − 9 = −4(x + 1), and segment CD is on the line y − 6 = one fourth(x − 3). Which statement proves the relationship of segments AB and CD? A: They are perpendicular because they have slopes that are opposite reciprocals of 4 and negative one fourth. B: They are parallel because they have the same slope of 4. C: They are perpendicular because they have slopes that are opposite reciprocals of −4 and one fourth. D:They are parallel because they have the same slope of negative one fourth.