"On a coordinate plane, two triangles are shown. The first triangle has points M(-5, 4), N(-2, 3), and L(-4, 2). The second triangle has points L'(-4, -2), M'(-5, -4), and N'(-2, -3). What is the rule for the reflection?
a) Rx-axis(x, y) → (-x, y)
b) Ry-axis(x, y) → (-x, y)
c) Rx-axis(x, y) → (x, -y)
d) Ry-axis(x, y) → (x, -y)"