The city of Raleigh has 6300 registered voters. There are two candidates for city council in an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 600 randomly selected registered voters was conducted. 310 said they'd vote for Brown, 252 said they'd vote for Feliz, and 38 were undecided. Describe the sample for this survey.

• All citizens of Raleigh
• All registered voters in Raleigh
• All registered voters with telephones in Raleigh
• The 600 voters surveyed
• The 310 voters who said they'd vote for Brown
• None of the above