The residue of a complex function $$x(z) = \frac{1 - 2z}{z(z - 1)(z - 2)}$$ at its poles are

A

$$\frac{1}{2}, \frac{1}{2}$$ and $$1$$

B

$$\frac{1}{2}, \frac{1}{2}$$ and $$-1$

C

$$\frac{1}{2}, 1$$ and $$-\frac{3}{2}$$

D

$$\frac{1}{2}, -1$$ and $$\frac{3}{2}$$