Which of the Following Is NOT One of the Criticisms

Which of the following is NOT one of the criticisms of the use of criminology in the criminal justice system?

A) Criminology has not done enough to make our country a safer place.
B) Researchers know less today about "what works" in criminology than at any other time in our nation's history.
C) That some are trying to understand crime rather than trying to reduce it.
D) Some practitioners argue that too much of the research done by criminologists is inaccessible to them.