In lean manufacturing, incoming raw materials are received a. directly by the product cells and held for later production. b. directly by the product cells and entered immediately into production. c. by the warehouse and held for later production. d. by the warehouse and entered immediately into the inventory system.

b. directly by the product cells and entered immediately into production.

Explanation:

In lean manufacturing, incoming raw materials are received directly by the product cells and entered immediately into production. In this kind of manufacturing system, the materials are directly received by manufacturing cells and immediately entered into production, this means the raw materials re directly received by the products cells. Hence, it is the correct feature of lean manufacturing system.