The number of hours five employees worked in a week is as follows: $32$, $36$, $40$, $44$, $48$. What is the sample standard deviation of the hours worked? Use the formula $s=\sqrt{\frac{\sum x^2-\frac{{(\sum x)}^2}{n}}{n-1}}$.

• A. $7.32$ hours
• B. $6.23$ hours
• C. $5.32$ hours
• D. $6.32$ hours