Which Statement Best Describes the Measurement of Crime in Canada

Which statement best describes the measurement of crime in Canada?

A) Our estimates of crime are based on data gathered by policing agencies.
B) The crime measurement system is known as the National Crime Assessment Survey.
C) A major criticism of the way we measure crime in Canada is that no account is taken of severity.
D) While our national crime system allows us to estimate the amount of crime for Canada as a whole,it does not allow comparisons to be made between cities or provinces.