Let O be the vertex of the parabola $$x^{2}=4y$$ and Q be any point on it. Let the locus of the point P, which divides the line segment OQ internally in the ratio 2: 3 be the conic C. Then the equation of the chord of C, which is bisected at the point (1, 2), is:

A

x - 2y + 3 = 0

B

5x - 4y + 3 = 0

C

5x - y - 3 = 0

D

4x - 5y + 6 = 0