Triangle ABC is shown on the coordinate plane.

Triangle ABC is shown. A is at negative 2, 1. B is at negative 1, 4. C is at negative 4, 5.

If triangle ABC is reflected over the x-axis, reflected over the y-axis, and rotated 180 degrees, where will point B' lie?

(−1, 4)
(1, −4)
(4, −1)
(−4, 1)