单项选择题
To accept that there is a distinction between a person and human being can lead to several possible positions. Which one is not of them?
A. The concept of person cannot be reduced or restricted to any particular species.
B. In principle human beings are the only species that can be persons.
C. The distinction between human being and person may lead to the view
that an individual human being, depending on their stage of development and health,
may not yet be a person or may have ceased to be a person.
D. In research ethics, when vulnerable populations such as very young children are needed to participate in medical research, there is heightened awareness of the need to ensure that they are taken care of, that they are not exploited and that their rights granted to them in law are upheld.