Which method will give Pia a sample of the population she is the manager of XYZ supermarket, and has a project to find out how long it takes a typical employee of the supermarket to travel to work. Would the answer be survey people who are shopping in the meat department at XYZ supermarket survey, all supermarket, employees and the state survey employees who work in the meat department at any supermarket or survey XYZ supermarket employees who work in the meat department.

The answer would be to survey all supermarket employees at XYZ supermarket, as this will give Pia a sample of the population she is the manager of.