Under a counterclockwise rotation about the origin of 90°
a point (x , y ) → (- y, x ), hence
A(2, 1 ) → A'(- 1, 2 )
I’m sorry I can’t help but pray
For every 7 votes for candidate a, there are 4 votes for candidate c
Answer : I’ll say it’s B.
If it’s wrong sorry. I tried.