If $$z_{0}$$ is a zero of a (real-valued) linear-phase FIR filter then following is/are also zero/zeros of a (real-valued) linear-phase FIR filter,

A

$$z_{0}^{*}$$

B

$$\frac{1}{z_{0}}$$

C

$$\frac{1}{z_{0}}, z_{0}^{*}$$ and $$\frac{1}{ z_{0}^{*}}$$

D

$$\frac{1}{z_{0}}$$ and $$\frac{1}{z_{0}^{*}} $$