A company has 5 employees who have a cost of \($100\) per day each but currently have no work to do; this situation is expected to last for the next two weeks. The company is considering accepting a special order that will take 5 employees one week each, commencing immediately. The work will require supervision, equivalent to 10% of the variable labour time, but all of the supervisors are very busy. Supervision costs are normally \($200\) per day but additional supervision will involve overtime at the rate of \($300\) per day. The relevant cost for the order is

a. $750

b. $1,250

c. $3,000

d. $3,250