The Belmont Report's ethical principle of justice requires that:
A. researchers limit studies only to those of legal age.

B. participants make deliberate decisions about whether to participate in research.

C. there must be fairness in receiving the benefits of research.

D. potential participants in a research project should be provided with all information.

Explanation:

The Belmont Report summarizes the basic ethical principles that gets identified by the National Commission in time of its reflection. It deals in resolving the ethical problems of human with proper research.

The rules, few general, others specific guide the investigators in their work. These rules are insufficient to solve complex situations that results into conflict. And they becomes difficult to apply.

Broader ethical principles includes specific rules that are articulated, criticized and interpreted.

no the answer is c only objects touching the earth's surface can be acted upon by an outside force