管理员想要防止驻留在vSphere DRS集群的优先级虚拟机迁移到集群中的其他主机。哪个配置步骤会做到这一点，而不影响其他虚拟机？（）

A.Configure a VM/Host Rule with the setting Should run on hosts in group.
B.Set VM Overrides to Manual.
C.Configure a VM/Host Rule with the setting Must run on hosts in group.
D.Set VM Overrides to Partially Automated.