How does a Cisco Unified Border Element support codec filtering?

A.
The Cisco Unified Border Element relies on the endpoint that initiates the call to determine
which codes the call will use.

B.
The Cisco Unified Border Element can be configured to support codec filtering by adding a list
of supported codecs in global configuration mode.

C.
The Cisco Unified Border Element can be configured to support codec filtering by adding one or
more codec types to each dial peer that is configured in the device.

D.
The Cisco Unified Border Element will only support codec filtering in media flow-around mode
so that endpoints can negotiate a specific codec independently.