What Windows security object is granted the vCenter Server administrator role during installation?

A.
Domain Admins

B.
Administrator

C.
Administrators

D.
ESX Admins

Explanation:
http://pubs.vmware.com/vsphere-4-esxi-installablevcenter/index.jsp?topic=/com.vmware.vsphere.esxi_server_config.doc_41/esx_server_config/auth
entication_and_user_management/c_administrator.html