Polygon ABCD is defined by the points A(-5, 1), B(-4, 3), C(-2, 7) and D(-1, 2) if the polygon rotates 90 counterclockwise to create polygon A'B'C'D', what are the coordinates of c?

A.) (-2, -7)

B.) (-7, -2)

C.) (7, 2)

D.) (2, 7)