Find P, Q, R and S respectively.
A Intersection point of medians, 2, intersection point of diagonals, 90°
B Intersection point of medians, 2, intersection point of diagonals, 180°
C Intersection point of altitudes, 4, intersection point of diagonals, 25°
D Intersection point of sides, 4, intersection point of diagonals, 45°
i wrote option a but it gave me error