In congruent triangles, corresponding angles are equal. Since triangle ABC is congruent to triangle EFG and
, it follows that
is also
. Thus, the answer is C.
In congruent triangles, corresponding angles are equal. Given that triangle ABC is congruent to triangle EFG and
,
, and
, it follows that in triangle EFG,
corresponds to
and is also
. Therefore, the correct answer is C.
This congruence property allows for the direct determination of
based on the given angles in triangle ABC, emphasizing the geometric principle that corresponding angles in congruent triangles are equal.