The triangle that is similar to triangle ABC is in option A
What is AA similarity theorem
The AA similarity theorem states if in two triangles, corresponding angles are congruent, then the triangles are similar.
Based on the given information we can see that the angles in the triangles are
180 - 107 - 34 = 39 (sum of angles in a triangle)
Hence a triangle with 107 and 39 is same with triangle with 107 and 34.
This feature is matched by option A