$$\text { The term } z _ { \alpha / 2 } \left( \frac { \sigma } { \sqrt { n } } \right) \text { describes the }$$

Multiple Choice

$$\text { The term } z _ { \alpha / 2 } \left( \frac { \sigma } { \sqrt { n } } \right) \text { describes the }$$ _______

A) confidence interval
B) maximum error of estimate
C) unbiased estimator
D) interval estimate