Which statement is true about Infrastructure as a Service (IaaS) zones?

Which statement is true about Infrastructure as a Service (IaaS) zones?

A.
Any server pool can belong to any IaaS zone.

B.
Every server pool in an IaaS zone must be connected to the same storage repository.

C.
IaaS zones can be used only by self-service users.

D.
IaaS zones are a collection of two or more server pools.

E.
OVM servers in an IaaS zone are all owned by the same OVM Manager.

F.
Every server in an IaaS zone must be of a homogeneous hardware specification.

Explanation:
http://docs.oracle.com/cd/E24628_01/doc.121/e28814/cloud_overview_new.htm#EMC
LO332(oracle cloud anatomy)