Before Polling the Students in Scion School of Business, a Researcher

Multiple Choice

Before polling the students in Scion School of Business, a researcher divides all the current students into groups based on their class standing, such as freshman, sophomores, and so on. Then, she randomly draws a sample of 50 students from each of these groups to create a representative sample of the entire student body in the school. Which of the following sampling methods is the researcher practicing?

A) Simple random sampling
B) Systematic random sampling
C) Stratified random sampling
D) Cluster sampling
E) Snowball sampling