Students in a high school mathematics class decided their term project would be a study of the strictness of the parents or guardians of students at their school. Their goal was to estimate the proportion of students in
their school who thought of their parents or guardians as “strict”. They do not have time to interview all
students in the school, so they plan to obtain data from a sample of students. Which of the following
describes the best design for this study?
A. Simulation
B. Observational study
C. Survey
D. Experiment