C.
A and C are not a universal answer
Answer:
I am pretty sure it is the C.
Explanation:
The reasons is that A and D are broken apart too much and B is just a run on sentence.
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.