What tool would be best used to accomplish this?

Johnny is a member of the hacking group Orpheus1. He is currently working on breaking into the
Department of Defense’s front end Exchange Server. He was able to get into the server, located in
a DMZ, by using an unused service account that had a very weak password that he was able to
guess. Johnny wants to crack the administrator password, but does not have a lot of time to crack
it. He wants to use a tool that already has the LM hashes computed for all possible permutations
of the administrator password.
What tool would be best used to accomplish this?

A.
SMBCrack

B.
SmurfCrack

C.
PSCrack

D.
RainbowTables