You are a shop floor manager and you have received an order which is a back-to-back order in nature. You need to reserve 100 pieces of an item in order to finish you order. However, there are only 50 pieces available for reservation. If you process this request, how many pieces are provided as the fulfillment for the order? 

Answer options:

A. 50 pieces, because full 100 quantities are not available.
B. 25 pieces, only half of the quantities can be reserved.
C. 0 pieces, because partial fulfillment of reservation not supported.
D. 100 pieces, 50 from on-hand and 50 in the form of a purchase order.

C