单项选择题WheninstallingtheCRSsoftwareontwoormorenodesinthesamecluster,howdoyouknowitissafetostartinstallingthenextnode?()
A.Wait until the node is completely installed to start installation on the next one.
B.After you insert Disk 2.
C.A dialog box, "It is now safe to start installing the next node," appears during the installation.
D.After Windows OS is installed on the first node.