A, B, C, and D have the coordinates (-8, 1), (-2, 4), (-3, -1), and (-6, 5), respectively. Which sentence about the points is tr
ue? a:A, B, C, and D lie on the same line.
B: AB and CD are perpendicular lines.
C: AB and CD are parallel lines.
D: AB and CD are intersecting lines but are not perpendicular.
E: AC and BD are parallel lines.