Provide an Appropriate Response A) $\sigma = 1.06$ B) $\sigma = 0.84$

Provide an appropriate response. Round to the nearest hundredth.
-In a certain town, 70% of adults have a college degree. The accompanying table describes the probability distribution for the number of adults (among 4 randomly selected adults) who have a college degree. Find the Standard deviation for the probability distribution. $$\begin{array} { | c | c | } \hline \mathrm { x } & \mathrm { P } ( \mathrm { x } ) \\\hline 0 & 0.0081 \\1 & 0.0756 \\2 & 0.2646 \\3 & 0.4116 \\4 & 0.2401 \\\hline\end{array}$$

A) $\sigma = 1.06$
B) $\sigma = 0.84$
C) $\sigma = 2.95$
D) $\sigma = 0.92$