Which two steps are required prior to extending Machine Lifecycles using an external vRealize Orchestrator? (Choose two.) 

Answer options:

A. Install the vRealize Automation Plug-In on the vRealize Orchestrator server.
B. Add a vRealize Automation host and IaaS host using the vRealize Automation (Plug in)
C. Install the SOAP Plug-in on an external vRealize Orchestrator server and configure a vRealize Automation server as a SOAP host.
D. Install the Vmware vSphere Plug-in ans external vRealize Orchestrator server.

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Reference: https://docs.vmware.com/en/vRealize-Automation/7.0/com.vmware.vra.extensibility.doc/GUID-2A4279F7-1A01-46F8-8EB5-6DE3999B460B.html