Selfridges Is the Second-Largest Department Store in Great Britain

Selfridges is the second-largest department store in Great Britain.It works with House of Frasier,one of its competitors,to reduce operating costs by sharing channels of distribution to ship goods from more than 1,500 suppliers.
-Refer to Selfridges.In choosing a channel of distribution,Selfridges more than likely relied on which of the following?

A) market factors
B) ownership requirements
C) production factors
D) geodemographic requirements