Which service component in a detailed design development focuses on identification and configuration of the actual network components （routers， servers， local-area networks， and so on） to be incorporated to run and support a Cisco Unified Communications system. （）

A.Assess the existing environments to determine if it can support the proposed system.
B.Identify the activities for installing and configuring the equipment at the customer sites.
C.Gather high-level solution requirements， and understand the customer business needs an the opportunity.
D.Prepare the activities for day-to-day support， management， and monitoring of the newly implemented system.

A.the minimum set of services that are needed to successfully deploy and manage technology solution
B.system design to help ensure selection of the most appropriate products
C.business requirements and investments as they pertain to asset lifecycle management
D.technology strategies and related product lifecycles that are required to ensure minimal risks and maximum return of investment

A.Messaging Implementation
B.Rich Media Implementation
C.Personal Assistant Implementation
D.Auto Attendant Implementation
E.Call Control Implementation