The production demand for widgets for a​ 250-workday year is​7,500 units. Ordering costs are​ $25.00 per order and carrying costs are​ $9.00 per unit per year. Four days must be allowed between order placement and order receipt.What is the number of orders per​ year, assuming known and constant​ variables?A.107B.27C.37D.127The answer is C but can anyone explain why?