Figure Q was rotated by 90 degrees counterclockwise about the center of rotation shown. What figure is in image of Q?

Answer:
The image of a figure is the resulting figure after a transformation is applied. Counterclockwise means opposite to the direction a clock moves in. Thus the answer is D. Also, in the future post this under math, not biology. C may seem like the right answer; it'll become clearer as you practice more.