Gene is writing a newspaper article on the incomes of residents in his county. He would like to represent all residents in this article, but since he can not survey each of them, he decides on surveying a sample of Which of the following survey techniques would provide Gene with the most accurate representation of the entire population?
A. survey resident from every block in the county
B. survey 1 out of every 100 public employees in the county
C. survey the first 100 residents at the county library in the morning
D. survey 1 out of every 10 residents who walk out of a popular restaurant in the area