A Beam of Plane Polarized Light Is Incident on 3

Multiple Choice

A beam of plane polarized light is incident on 3 polarizers,the first with an axis at 30° to the original plane of polarization,the second at 60° to the original plane of polarization,and the third at 30° to the original plane of polarization.What angle does the plane of polarization of the transmitted light make with the original plane of polarization of the original beam?

A) 30°
B) 180°
C) 90°
D) The answer is not given.