Use the Following to Answer the Questions Below

Use the following to answer the questions below.
Shipments of Product X from a plant to a wholesaler are made in lots of 600.The wholesaler's average demand for X is 100 units per week.Lead time from plant to wholesaler is 4 weeks.The wholesaler pays for the shipments when they leave the plant.
-Refer to the instruction above.If the plant reduces its shipment lot size from 600 to 400 units and keeps its 4 week lead time,what is the wholesaler's new total cycle plus pipeline inventories?

A) 600 units
B) 300 units
C) 500 units
D) 400 units