Which sampling method is most likely to give a representative sample of the opinions of voters in an election race for governor of a state? Call 1000 randomly selected registered voters and ask their opinions.

Ask viewers of the 11:00 P. M. news on a local television station to register their opinions on the station's web site.

Over the course of a week, poll every customer who comes into a car dealership and is willing to answer questions.

Send questionnaires to 500 randomly selected registered members of each of the recognized political parties in the state.