An administrator is installing a new network card in an ESXi 6.x host that is part of a vSphere cluster. When the host is placed into maintenance mode, the vSphere
Web Client displays the progress bar at 2% for over 30 minutes.
Which two are likely reasons for this occurrence? (Choose two.)
A. Maintenance mode is unable to migrate all virtual machines from the host.
B. There is a large number of virtual machines that must be migrated from the host.
C. VMware High Availability is in the process of reconfiguring the cluster.
D. Each virtual machine on the ESXi host must be reconfigured to recognize the new adapter.