Your current options seem correct.
Social workers are in prison, Therapists are often in schools, and emergencies need managers.However, I can't see the full answer for the first, so it might be the other way around for the Therapist one.
The answer to your question is The tone and style of your essay.
Have a nice day and good luck!!
Answer:c
Explanation:
Hernandez, L. "Flight." Illustration. The Artist's Page. Artists Unlimited, 12 December 2010. Web. 15 May 2012.