John sells cheese in his food shop. In 300 day year, he sells 600 blocks of specific type of imported cheese (2 blocksa day). It costs $9.60 per year to store block of cheese and $20 to place an order
If the delivery lead time is four days, and he selects to keep a safety stock of one block, what is the reorder point?
a. 9 blocks
b. 5 blocks
c. 3 days
d. 9 days