Owner uses $40$ ?pounds of pepperoni each day preparing pizzas order costs for pepperoni are $10$ $ per order and carrying costs are $4$ ?cents per pound per day lead time for each order is $3$ ?days and the pepperoni itself costs $3$ $ per pound assume a $240$ ?working days per year. At what point should she reorder pepperoni? A $.40$ ?pounds remaining B $60$ ?C $80$ ?D $100$ ?E $120$