If I were the nurse in this scenario, I would probably go over a lot of key parts of development and how they work. Also, say that most if not all developmental phases are painless, which may help her worriedness. Hope this helps! :)
I think the answer to this is A but I’m not sure
Ask your guardian, they'll tell you
Answer:
Psychologists are traditionally concerned with the study of behavior. We believe that many aspects of population, from fertility regulation to migration, may be viewed as examples of human behavior occuring within particular socioeconomic and environmental contexts and thus appropriate for psychological research.