Which triangle defined by three points on the coordinate plane is congruent with the triangle illustrated, and why?
A)(-1, 1)(-2, 1)(-1, 4); because corresponding pairs of angles are congruent.
B)(-2, -3)(-4, -3)(-2, -9); because corresponding pairs of angles are congruent.
C)(-1, 1)(-2, 1)(-1, 4); because corresponding pairs of sides and corresponding pairs of angles are congruent.
D)(-2, -3)(-4, -3)(-2, -9); because corresponding pairs of sides and corresponding pairs of angles are congruent.