Which step can an administrator take so that vSphere can access patch information if vCenter Server does NOT have Internet access? (Choose the best answer.) 

Answer options:

A. Use a Web server on the vCenter Server machine to automate the transfer of files.
B. Install VMware vSphere Update Manager Download Service on a Windows server.
C. Use an offline ISO file to import patches to the vSphere Lifecycle Manager depot manually.
D. Install VMware vSphere Update Manager Download Service on a Linux server.

D