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) They are useful when consumers are unable to articulate their experiences.
B) They can provide an historical context for the phenomenon of interest.
C) They are the most cost-effective method for reaching a large sample of consumers.
D) They yield quantitative data that can be analyzed using sophisticated statistical analysis.
E) They are relatively inexpensive compared to other primary research methods.