PLEASE HELP ASAP In this diagram, which equation could you prove to be true in order to conclude that the lines are parallel?

c−a/b = −d/e

c−a/b = d/e

c−a/b ⋅ −d/e=−1

c−a/b ⋅ d/e=−1
Two parallel lines on a coordinate plane. The first line passes through a point on the y-axis labeled 0 comma a and a point in the first quadrant labeled b comma c. The second line passes through a point on the y-axis labeled 0 comma negative d and a point on the x-axis labeled e comma 0.