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

Question

( A ) harmonic progression
( B ) geometric progression
( C ) arithmetico - geometric progression
( D ) arithmetic progression