I know none of these are actually the answer but odysseyware gave me credit for
(4,2)
This is clearly false as it will just mess up the question.
So in your circle their is a terminal point who is assigned by the value of P(x,y) and lies or determined by teh value of T=4pi/3. To get the coordinates of this terminal point first is to know what is the angle of the T and the answer is (-1/2, -sqrt(3)/2)