Of the Following, Which Best Illustrates an Example of a Mixed

Of the following, which best illustrates an example of a mixed methods study that addresses homework practices and student achievement?

A) Barb conducts interviews with students and parents and examines student standardized test scores.
B) Akasha collects PSAT scores, class grades, and end of year standardized test scores
C) Lee conducts observations of activities during a homework club and interviews parents, teachers, and students.
D) Kareem uses SES data collected from the school, including parents' education level, family income, and neighborhood and student test scores.