A city council member wanted to know how his constituents felt about a planned rezoning. He randomly selected 150 names from the city phone directory and conducted a phone survey.
Identify the population and sample for this situation.
A The population is everyone listed in the city phone directory; the sample is registered voters in the city
B The population is residents of the city; the sample is the registered voters in the city.
C The population is registered voters in the city; the sample is everyone listed in the city phone directory.
D The population is everyone listed in the city phone directory; the sample is the 150 people selected.