Which of the Following Is a Benefit of Using In-Depth

Which of the following is a benefit of using in-depth interviews as a research method?

A) It is useful when consumers are unable to articulate their experiences.
B) It can provide a historical context to the phenomenon of interest.
C) It is the most cost-effective method for reaching a large sample of consumers.
D) It yields quantitative data that can be analyzed using sophisticated statistical analysis.
E) It is the most effective method for determining which variable has a casual effect on another variable.