Given the following inventory system: average weekly $(7$ days a week$)$ demand is $1000$ units with a standard deviation of $85$ units, the review period is $5$ weeks and lead time is $14$ days $(2$ weeks$)$ and the target service probability is $95\%.$

What is the appropriate level of safety stock?

$314$

$1720$

$370$

$222$

$80$