Your manager has just returned from a conference on virtualization where she heard many
environments have a large number of their virtual machines over-provisioned. She wants to know
if this is the case here as well. What vCenter Operations Manager Super Metric would you use to
identify reclaimable waste?

A.
Risk

B.
Efficiency

C.
Performance

D.
Health

Explanation:
http://www.vmware.com/pdf/vcops-5-getting-started-guide.pdf(page 19)