If α and β are two roots of the quadratic equation $ax^2 - bx + c$ where a, b, c are constants and a ≠ 0, then the value of $\frac{1}{α}+\frac{1}{β}$ is

$\frac{-b}{c}$ $\frac{c}{b}$ $\frac{c}{a}$ $\frac{b}{c}$

$\frac{b}{c}$