What is the method that needs to be followed?

A company deploys centralized Cisco UCM architecture for a hub location and two remote sites.

• The company has only one ITSP connection at the hub location, and ITSP supports only G.711 calls.

• Remote site A has a 1-Gbps fiber connection to the hub location and calls to and from remote site A use G.711 codec.

• Remote site B has a 1-T1 connection to the hub location and calls to and from remote site B use G.729 codec.

Based on the provided guidance, a Cisco voice engineer must design media resource management for the customer.

What is the method that needs to be followed?
A . configure the software transcoder on Cisco UCM to support voice calls to and from both remote sites
B . configure the hardware transcoder on the site A router
C . configure the hardware transcoder on the hub location router
D . configure the hardware transcoder on the site B router