For the project network shown below, the indirect project cost $is$

$$\frac{1000}{?}$ day. There $is$ a penalty $of$ $$500$ per day $if$ the project goes beyond $12$

days and $an$ incentive $(reward)of$ $$1000$ per day $if$ the project finishes $in$

less than $9$ days."What $is$ the optimum cost $of$ the time$-cost$ trade$-$off solution?

Select $an$ answer and submit. For keyboard navigation, use the $u\frac{p}{d}$own arrow keys $to$ select $an$ answer.

$a$

$30,000$

$b$

$28,000$

$c$

$35,000$

$d$

$32,000"$