For Which of the Following Situations Would a Census Be

Multiple Choice

For which of the following situations would a census be more useful than a sample survey?

A) To determine what percent of the adults in a state are unemployed.
B) To estimate how many of the 200 physicians in a large city accept patients on welfare.
C) To estimate how many homeless people there are in a city.
D) To estimate how many of the students at a large university are in favor of a proposed fee increase to fund more parking.