Yes, the triangles are congruent. The correct response is:
Yes, △ABC ≅ △LMN by the SSS Congruence Theorem.
The SSS (Side-Side-Side) Congruence Theorem states that if three sides of one triangle are congruent to three sides of another triangle, then the two triangles are congruent. In this case, since corresponding sides are marked as congruent, we can conclude that the triangles are congruent.