how can an administrator modify the HLU?

If a LUN is already a member of a storage group, how can an administrator modify the HLU?

A.
The administrator can modify the HLU without any restrictions

B.
The administrator cannot modify the HLU unless the LUN is unbound and rebound

C.
The administrator can modify the HLU only with the CLI

D.
The administrator can modify the HLU only if the LUN is removed and added back into the storage group