A) The two orange angles are in the same relative position at each intersection (top-left).

Here are the types of angle pairs shown in each diagram:

a) The two orange angles are in the same relative position at each intersection (top-left).
These are corresponding angles.

b) The two pink angles are on opposite sides of the transversal and between the parallel lines.
These are alternate angles (specifically, alternate interior angles).

c) The top green angle is in the top-right exterior position. The bottom green angle is in the bottom-right interior position. These angles are on the same side of the transversal, with one exterior and one interior. This configuration is also known as corresponding angles if you consider the top-right exterior angle and the angle vertically opposite to the bottom-right interior angle, which would be the top-right interior angle