Answer:
b. A study in which subjects were assigned to study activities based on an undesirable or unflattering physical characteristic as assessed by members of the research team.
Explanation:
In case the subjects were used in the study judging by their unconventional, undesirable or unflattering looks and physical characteristics, it is better not to tell them the additional information after the study is concluded.
<u>In that case, reveling the additional information can result in subjects being hurt, offended and angry, the reason for choosing them may seem unethical and wrong, and the researcher (and the study) could be put in the problem.</u>
The subjects should not be harmed in the process and this study might cause them emotional harm.
