Following an unscheduled power outage, theadministrator needs to power up an IVM-managed system. For the given system,what is the first step in this process?（）

A、Physically press the appropriate button on the system.

B、Physically disconnect and reconnect the power cable on the system.

C、Log into the IVM using a Web Browser, select the managed-system and select the Power on option from the Operations menu.

D、Log into the HMC using a Web Browser, select the managed-system and select the Power on option from the Operations menu.