Warehouses emphasizes on _ and their primary purpose is to maximize _.

Warehousing has adapted by expanding offerings of value added activities that support increasingly demanding customer requirements. Warehouses emphasize the storage of products, and their primary purpose is to maximize the usage of available storage space .Introducing warehousing into a supply chain appears to result in a net increase in the total costs of conducting business. With the increase in competition warehousing and inventory control must be clearly understood and its cost must be kept as low as possible to avoid losses in the Business. 

 3. rapid movement of product; throughput

Option 2- storage of products and to use the availiable storage place

The Managing the warehouse is very difficult  unless you have minimized the stock and update time to time. To reduce the cost and give good coordination to the customers. To keep our standard in the market bussiness. So the answer goes to rapid movement of product; usage of available storage space.

 2. product storage; usage of available storage space

i fully agree with the answers been added by experts....thanks.

 usage of available storage space . product storage;

agree with answer given by mr. Saiyid Maududi 

Warehouses emphasize the storage of products, and their primary purpose is to maximize the usage of available storage space .

rapid movement of product; usage of available storage space==============================================

Product storage and usage of available spaces corresponds to warehousing