For this problem we need to identify point about which a figure is rotatedand for this case if we analyze the options we have:
A. dilation
Tha'ts False since a dilation is a process and not a point
B. center of rotation
This one would be the best answer since represent the point where the figure is rotated
C. scale factor
That's not correct the scale factor is not associated to the center of the rotation point
D. center of dilation
False the dilation is a different process respect to the rotation
E. option 5
This option is not a good one