Which is the purpose of this setting?

In a vSphere 6.5 cluster, the administrator notices that it is possible to set a percentage in the DRS option, “Control CPU over-commitment in the cluster.”

Which is the purpose of this setting?
A . It sets and enforces a maximum percentage of virtual machine CPU usage in GHz in comparison to physical CPU availability in GHz.
B . It sets and enforces a maximum ratio in percentage between powered on virtual machine CPUs and available physical CPUs on hosts.
C . It prevents the creation of any additional virtual machines in the cluster.
D . It calculates the total shares assigned to all virtual machines in comparison to GHz of available physical CP

Answer: B

Explanation:

https://blogs.vmware.com/vsphere/2016/10/whats-new-in-vsphere-6-5-host-resource-management-and-operations.html"CPU over-commitment: This is an option to enforce a maximum vCPU:pCPU ratios in the cluster. Once the cluster reaches this defined value, no additional VMs will be allowed to power on."