.What was the setting for this research study?

.  What was the setting for this research study? Briefly describe the setting and indicate whether it was appropriate for conducting this study.

a.  The setting for this study was a partially controlled setting and was appropriate for this study's research design.

b.  The setting for this study was a natural or field setting and was appropriate for this study's research design.

c.  The setting for this study was a highly controlled setting and was appropriate for this study's research design.

d.  The setting for this study was not well described by the authors and therefore not appropriate for conducting this study.