1. Discuss the extent to which findings can be generalized from a single case study

2. Can it? Well, you can use the info you get from transferability.
But you also need to compare your case study to similar ones (either other researchers exploring the same thing or similar things).
If other case studies or research support your finding findings it is more likely generalizable to a wider population.
Either compare yours to Mr. Hertzigs Case Study of HHS (researcher Triangulation)
Or to a case study of a similar demographic…MHS
Discuss the extent to which findings can be generalized from a single case study

3. Or maybe…
If the case study has similar results to other forms of qualitative research, like…..
Observations
Interviews
Focus Groups