What is the correct installation order for the Cisco Agent Desktop in a Cisco Unified Contact Center Enterprise solution?

A.
Cisco Unified Communications Manager Peripheral Gateway; CTI Server; Cisco Agent Desktop administrator; Cisco Agent Desktop server; CTI/OS Server; Cisco Agent Desktop agent

B.
Cisco Unified Communications Manager Peripheral Gateway; CTI Server; CTI/OS Server; Cisco Agent Desktop administrator; Cisco Agent Desktop server; Cisco Agent Desktop agent

C.
Cisco Unified Communications Manager Peripheral Gateway; CTI Server; CTI/OS Server; Cisco Agent Desktop server; Cisco Agent Desktop administrator; Cisco Agent Desktop agent

D.
Cisco Unified Communications Manager Peripheral Gateway; CTI Server; Cisco Agent Desktop server; Cisco Agent Desktop administrator; CTI/OS Server; Cisco Agent Desktop agent