A vSphere administrator is attempting to upgrade an ESXi host using vSphere Update Manager. The administrator has attached the baseline and remediated the host. Update Manager reports the remediation process has completed successfully. However, upon inspection the host is not upgraded.
What is the most likely reason for this issue?
A. The ESXi host has less than 10MB free in its /tmp directory.
B. The user performing the upgrade has insufficient privileges.
C. The Update Manager service has not been configured with root level access to the host.
D. The baseline has been configured using an invalid ISO image.
