Hiya, I'm confused which one is the answer.

Wthh of the following describes the transformation that corresponds to the matrix 1 I} I] A: U 2 D [II D 1 acting on column vectors representing points in 3D with coordinates (I, y, a) ? Choose one answer. '3' anticlockwise rotation by BUD about the Z axis; combined with an area expansion of 1/5 C) reection aboutthe plane y = I and a 1.rolume expansion of 2 [3' expansion by a factor of 2 along the 'y axis combined with reection about the (y, Z}plane O reection aboutthe plane y = 2:1