Need help with this one:)

Can someone me and do the problem plz so i can understand it more better

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.

Question 5 of 10 2 points if a population is a sample of the population could be a. registered voters; all citizens o o b. baptists; all religious people o c. people who purchased shoes; all customers o d. the entire school faculty; math teachers