Answer: A, B, C
Explanation:
Congruence of any shape by definition means that the two shapes have the same shape and size. This applies even if the shapes are in different orientations, or if the two shapes are reflected versions of each other, as long as the points are named the same respective to their different orientations. If the two triangles are congruent, their corresponding sides and angles are also congruent, because they are the same shapes, they have the same corresponding sides and angles. If any of these are not true, this means that the shapes are not congruent.