单项选择题

WhatisonereasonthecustomershouldinstallIBMDS8000VirtualPrivateNetwork(VPN)technologyfortheCallHomefunction()

A.toavoidusingamoreexpensivedial-upmodem
B.toloadnewlicensedinternalcode
C.toachievemoreefficientandfasterproblemresolution
D.toenablecapacityondemand
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