The specification limits for a product are $9+-1cm.$ A process that produces the product has a mean of $9\mathrm{.}5cm$ and a standard deviation of $0\mathrm{.}2cm.$ If the process mean is increased by $0\mathrm{.}2cm$ and variability is reduced by $20\%.$ Is this modified process capable? What is the process capability, $C_{pk}?$

$2\mathrm{.}50$

$3\mathrm{.}54$

$3\mathrm{.}33$

$0\mathrm{.}83$

$0\mathrm{.}63$