Answer:
C (-3,-8)
Explanation:
I have attached a file of a graph ;)
The red point is the original point (3,8) and the green is the one rotated by 180 degrees. If you mentally draw an arc between the two, you will notice that it is exactly 180 deg around. Also, a trick for this. When it says rotate 180 deg around anything, reflect it over that.
I, uh, totally haven't done this exact quiz before