Which of these transformations can be used to show that quadrilateral JKLM with vertices J(8, 4), K(4, 10), L(12, 12), and M(14, 10) is congruent to quadrilateral WXYZ with vertices W(8, -4), X(4, -10), Y(12, -12), and Z(14, -10)?
a reflection
a rotation
a reflection followed by a dilation
a stretch followed by a reflection
a rotation followed by a dilation