ConsumErs DEprivED oF thE inFormAtion AnD ADviCE thEy nEEDED wErE quitE simply ______ vEry ChEAt in thE mArkEtplACE.
A．At thE mErCy oF
B．in liEu oF
C．By CourtEsy oF
D．For thE priCE oF