Which one of the options best describes the transformation of the 2-dimensional figure P to Q, and then to R, as shown?

A

Operation 1: A clockwise rotation by 90º about an axis perpendicular to the plane of the figure
Operation 2: A reflection along a horizontal line

B

Operation 1: A counter clockwise rotation by 90º about an axis perpendicular to the plane of the figure Operation 2: A reflection along a horizontal line

C

Operation 1: A clockwise rotation by 90º about an axis perpendicular to the plane of the figure
Operation 2: A reflection along a vertical line

D

Operation 1: A counter clockwise rotation by 180º about an axis perpendicular to the plane of the figure Operation 2: A reflection along a vertical line