Answer: AAS
Step-by-step explanation:
AAS = angle angle side
The arc markings show us which pairs of angles are congruent. The pair of congruent sides are the shared overlapping sides. Notice that the sides are not between the red angles, so we go for AAS instead of ASA. The order is important.
We cannot use SAS because we only know info about one pair of congruent sides (not two).