Questions 143~146 refer to the following passage.
Inventory, in business terms, __143__ any product or material kept for future use in production or sales. Inventory may consist of raw materials or components waiting to be utilized in the manufacturing process, such as tires stored by an automobile factory, or completed goods __144__ in storage to quickly fulfill a customer's order. However, storing inventory comes with additional expenses, including warehouse storage costs and working capital that is tied up. To pay for materials, components, and unsold goods with interest, companies must locate funds. If a company __145__ one inventory item, the entire manufacturing process may come to a halt, and employees must still be paid __146__ a lack of parts to continue production. Effective inventory management aims to maintain sufficient items on-site to allow for production while minimizing inventory holding expenses.
【題組】143.
(A)refer for
(B)refers to
(C)reference to
(D)reference for