Provide an Appropriate Response $\frac { \sigma } { \sqrt { n } }$

Multiple Choice

Provide an appropriate response.
-The standard error of the mean is given by

A) $\frac { \sigma } { \sqrt { n } }$
B) $\mu - \bar { x }$
C) $| \mu - \bar { x } |$
D) $\mu \pm \sigma$