Square pqrs is transformed as shown on the graph.

on a coordinate plane, 2 squares are shown. the first square has points p (negative 3, 5), q (negative 1, 3), r (negative 3, 1), s (negative 5, 3). the second square has points p prime (negative 5, negative 3), q prime (negative 3, negative 1), r prime (negative 1, negative 3), s prime (negative 3, negative 5).
which rule describes the transformation?

r0, 90°
r0, 180°
r0, 270°
r0, 360°