Let $$\alpha, \beta$$ be the roots of $$ax^2 + bx + c = 0$$; $$\gamma, \delta$$ be the roots of $$px^2 + qx + r = 0$$; & $$D_1, D_2$$ the respective discriminants of these equations. If, $$\alpha, \beta, \gamma, \delta$$ are in A.P. Then find the value of $$D_1:D_2$$

A

$$\frac{a^2}{p^2}$$

B

$$\frac{a^2}{b^2}$$

C

$$\frac{b^2}{q^2}$$

D

$$\frac{c^2}{r^2}$$