Which of the following is the correct sequence that should be followed to configure CMI correctly on CallManager?

Which of the following is the correct sequence that should be followed to configure CMI correctly on CallManager?

A.
Install CMI Service
Configure a CallManager server
Add the CMI Service to a CallManager server
Configure the CMI Service parameters

B.
Install CMI Service
Configure a CallManager server
Configure the CMI Service parameters
Add the CMI Service to a CallManager server

C.
Configure a CallManager server
Configure the CMI Service parameters
Add the CMI Service to a CallManager server
Install CMI Service

D.
Install CMI Service
Configure the CMI Service parameters
Add the CMI Service to a CallManager server
Configure a CallManager server