Which two events will result in a vSphere 5.x host running a virtual machine that contains an older virtual hardware version? (Choose two.)
A.
A virtual machine is created on a vSphere 5.x host and virtual disks for the VM are created on a VMFS3 datastore.
B.
A virtual machine was migrated from a vSphere 4.x host.
C.
A virtual machine is created on a vSphere 5.x host with a vmxnet3 network adapter.
D.
A virtual machine is created on a vSphere 5.x host and is attached to an existing virtual disk created with vSphere 4.x.