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?

Choices:
1 : They are perpendicular because they have slopes that are opposite reciprocals of 4 and negative one fourth.
2 : They are parallel because they have the same slope of 4.
3 : They are perpendicular because they have slopes that are opposite reciprocals of −4 and one fourth.
4 : They are parallel because they have the same slope of negative one fourth.