Answer:
B. Is there a power differential between researchers and subjects?
Step-by-step explanation:
When an IRB is reviewing a research study and they are considering if a potential subject population is vulnerable, they should consider whether there is a power differential between researchers and subjects?
This is important because this would let them know if a certain population is answerable to another. This is critical in judging the vulnerability of a population. It shows how a certain population is influenced by other even in the smallest of matters.