lf the sum of the roots of the quadratic equation $$ax^2 + bx + c = 0$$ is equal to the sum of the squares of their reciprocals, then $$\frac{a}{c}, \frac{b}{a}$$ and $$\frac{c}{b}$$ are in

A

arithmetic progression

B

geometric progression

C

arithmetic-geometric-progression

D

harmonic progression