Let PS be the median of the triangle with vertices P(2,2),Q(6,−1) and R(7,3). The equation of line passing through (1,−1) and parallel to PS is :
A. 2x - 9y - 7 = 0
B. 2x - 9y - 11 = 0
C. 2x + 9y - 11 = 0
D. 2x + 9y + 7 = 0