Assuming that demand is normally distributed, $($Mean of $250$ units, standard deviation of $75$ units per$)$ and a lead time of $3$ periods, what reorder point will garuntee that no more than $10\%$ of order cycles will have one or more stockouts. $($choose the best awnser and SHOW WORK$)$

A$)900$

B$)1,000$

C$)1,100$

D$)1,200$