The null and alternative hypotheses are given. Determine whether the hypothesis test is left$-$tailed, right$-$tailed, or two$-$tailed and the parameter that is being tested.

H$0$: $\backslash$sigma $=8\mathrm{.}1$

H$1$: $\backslash$sigma $<8\mathrm{.}1$

Select one:

A$.$ Left$-$tailed, $\backslash$sigma

B$.$ Right$-$tailed, $\backslash$sigma

C$.$ Right$-$tailed, $\backslash$mu

D$.$ Left$-$tailed, s