The Formula for the Maximum Error of Estimation Is
A) $E=z_{\alpha / 2} \cdot \frac{\sigma}{\sqrt{2 n}}$

The formula for the maximum error of estimation is

A) $E=z_{\alpha / 2} \cdot \frac{\sigma}{\sqrt{2 n}}$ .
B) $E=z_{\alpha} \cdot \frac{\sigma}{\sqrt{n}}$ .
C) $E=z_{\alpha / 2} \cdot \frac{\sigma}{\sqrt{n}}$ .
D) $E=z_{\alpha / 2} \cdot \frac{\sigma}{n}$ .