Process data being used $in$ the initial set $upof$ a process $is$ assumed $to$ havea Normal Distribution. $If$ the Nominal $is$ set $at$ the process Mean, and theprocess specification $limits$ are set$\frac{+}{-}3S$ away from that Mean, its $Cpk$ isequal $to$

$A.-0\mathrm{.}25$

$B\mathrm{.}1$

$C\mathrm{.}1,33$

$D\mathrm{.}1,67$