B.) The difference between the current value of a house and what the buyer paid for it.
Answer:
The answer is below
Explanation:
Potential harms that participants can face may vary, amongst which are:
1. Should the responses from the participants not taken as confidential, this might expose some of the participant's health conditions
2. The stigmatization that may arise from other people who may have seen participants taking the survey, from the erroneous belief that the participants are HIV/AIDS positive already.
