∠2 and ∠6 are alternate exterior angles if we apply the rule of alternate exterior angles.
Option D is correct
Alternate exterior angles are described as two angles that lie outside a polygon, on opposite sides of an extending line, and do not have a vertex in common.
Option a. ∠3 and∠4 shows angles are interior angles. Option b . ∠1 and∠2 shows angles are linear pair. Option c . ∠1 and ∠6 shows angles that are outer angles
The property of alternate exterior angles can be used to solve problems involving parallel lines and transversals, such as finding missing angles or determining the relative measures of angles.