How does MRP Live minimize the volume of data that must be copied from the database server to the application server and back? Please choose the correct answer.

How does MRP Live minimize the volume of data that must be copied from the database server to the application server and back? Please choose the correct answer.
A . By reading only the existing purchase requisitions and planned orders.
B . By reading only the material receipts and requirements
C . By reading all data in one database procedure
D . By reading only the purchase receipts and requirements

Answer: C