Which of the following is an example of consolidation warehousing?
a)	Large shipments from multiple suppliers are re-sorted into customized shipments to individual stores.
b)	A single manufacturer takes output directly from a single manufacturing plant and sends it directly to a single customer.
c)	A single manufacturer takes output from several of its manufacturing plants and combines them into one shipment to a major customer.
d)	A single manufacturer holds a wide array of goods close to the source of demand.