Which two options are two purposes of the packet-tracer command? (Choose two.)

Which two options are two purposes of the packet-tracer command? (Choose two.)
A . to filter and monitor ingress traffic to a switch
B . to configure an interface-specific packet trace
C . to inject virtual packets into the data path
D . to debug packet drops in a production network
E . to correct dropped packets in a production network

Answer: C,D