Which three are supported upgrade processes for ESXi host?

Which three are supported upgrade processes for ESXi host? (Choose three.)

A.
using vSphere Auto Deploy

B.
using a TFTP server

C.
using Update Manager

D.
using an ESXCLI command

E.
installing from CIFS share

Explanation:
https://pubs.vmware.com/vsphere-60/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-
60-upgrade-guide.pdf