You are the Voice engineer at domain.com. Numerous TestKing users complain that they are unable to complete calls through the MGCP network. You want to verify the extent of the problem by reviewing a count of the successful and unsuccessful control commands.
Which command should you use?

A.
showmgcp

B.
showmgcpcount

C.
showmgcpstatistics

D.
show call active voice

E.
show call history voice