Which of the following is it in equivalent transformation to rotation of an object clockwise 90°

A. Rotation about the origin of 270° clockwise
B. Rotation about the origin of 270° counterclockwise.
C. Rotation about the origin of 180° counterclockwise
D. Rotation about the origin of 90° counterclockwise.

1 answer

B. Rotation about the origin of 270° counterclockwise.