Which option describes the purpose of the input parameter when you use the packet-tracer command on a Cisco device?

Which option describes the purpose of the input parameter when you use the packet-tracer
command on a Cisco device?

A.
to provide detailed packet-trace information

B.
to specify the source interface for the packet trace

C.
to display the trace capture in XML format

D.
to specify the protocol type for the packet trace