action be optimal?

a$)$ For what value of ordering cost would its action be optimal?

Its action would be optinal given an ordering cost of : $$ per order $($round your response to two decimal places$).$

b$)$ If the true ordering cost turns out to be much less than your answer to part $($a$),$ what is the impact on the firmis ordering policy?

A$.$ The order quantity should be increased

B$.$ The order quantity should be decreased

$q,$ C$.$ The order quantify should not be changed.