It Is Difficult to Study Different Types of Population Groups

It is difficult to study different types of population groups because they cannot find all the members or because there are too many in the population to address all of them.Social scientists avoid this problem by:

A) gathering information on only reported groups.
B) dividing the number of reported crimes by the number of convictions.
C) gathering a sample from the population and then generalizing form the sample to the population.
D) gathering information on the number of crimes by the number of convictions and then dividing by the total population.