ILL BRAINLIEST YOU HELP ME PLEASE

Answer:
A = (0, -3)
B = (0, 0)
C = (-2, 0)
D = (-2, -3)
Step-by-step explanation:
The figure is being rotated 90° counterclockwise that's why it's now located in Q III. B remains the same since it's our turning point. Correct me if I'm wrong. I hope it helps.