Answer:
A.
Explanation:
SAS:
If two sides and the included angle of one triangle are congruent to two sides and the included angle of a second triangle, then the triangles are congruent.
ASA:
If two angles and the included side of one triangle are congruent to two angles and the included side of a second triangle, then the triangles are congruent.
SSS:
if we can determine that the three sides of one triangle are congruent to three sides of another triangle, then the two triangles are congruent.
You can also apply the ASA postulate in this triangle but not the SAS.