The resource that is a valid source for statistics about crime rates is a government agency web site.
There exist numerous methods to measure crime in a nation. Public surveys are sometimes carried out in order to estimate the amount of crime that has not been reported to police. Such surveys are generally more reliable for assessing trends.
Besides, law enforcement reports are major methods for collecting crime.
I'm not so sure, but I think the answer is: <span> A. a government agency Web site
</span>Please note that it is useful to add the options provided with the question, in order to get a most accurate answer and have your question answered quicker.