Even Though Most Researchers Would Much Prefer to Be Able

Multiple Choice

Even though most researchers would much prefer to be able to do a census of their study population, sampling is necessary because:

A) Samples allow for greater participation by all members of the community to be studied
B) A census is generally too expensive and time consuming
C) There are too many uncontrolled variables in a census that can be controlled for in a sample
D) When using a census there is no way to generalize the results of the study