Which two prerequisites for BFD are true?

Which two prerequisites for BFD are true? (Choose two.)
A. For Layer 2 port channels used by BFD, you must disable LACP on the port channel.
B. Install NETWORK_SERVICES_PKG license.
C. For Layer 3 port channels used by BFD, you must enable LACP on the port channel.
D. Enable ICMP redirect messages on BFD-enabled interfaces.
E. Disable the IP packet verification check for identical IP source and destination addresses.

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