Which of the Following Research Scenarios Would Be Best for Unstructured

Which of the following research scenarios would be best for unstructured focus group research?

A) You are conducting research to learn more about the relationship between rates of high school graduation and unplanned pregnancy.
B) You are evaluating the effectiveness of a recent sexual harassment training at a chain of retail stores.
C) You are conducting research to understand how Denver residents' perception of the use of psilocybin mushrooms has changed after the substance's recent decriminalization.
D) You are conducting research among college students to identify a variety of ways in which students would like professors to make material more useful to visual learners.