A line cuts the x-axis at A(5, 0) and the y-axis at B(0, –3). A variable line PQ is drawn perpendicular to AB cutting the x-axis at P and the y-axis at Q. If AQ and BP meet at R, then the locus of R is
(A) x2 + y2 – 5x + 3y = 0
(B) x2 + y2 + 5x + 3y = 0
(C) x2 + y2 + 5x – 3y = 0
(D) x2 + y2 – 5x – 3y = 0