Answer:
D. Cannot be determined
Explanation:
We have that,
Side AG = 10 units and ∠AGT ≅ ∠AGB.
Thus, options A and B are discarded.
Now, as for the SAS criteria, we need two sides to be congruent and their included angles to be congruent.
But, as no other information is given, we cannot determine whether the given triangles are congruent or not.
Hence, option D is correct.