Thor Bhd$.$ uses $35$ baskets each day to pack its goods for shipping. It takes $5$ days to

receive a shipment of baskets after an order is placed. The firm would like a safety

stock of $15$ baskets in inventory: At what level of inventory should the firm place an

order for baskets?

A$.175$ units

B$.190$ units

C$.250$ units

D$.300$ units