More questions to my test help me plz

On a piece of paper, graph . then determine which answer choice matches the graph you drew

Having a hard time understanding this question (see attachment).

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