Ensuring that risks to subjects are no more than minimal.
Explanation:
The Belmont Report, implementing the principle of respect for persons involves, ensuring that subject selection is fair and along with that the risks to subjects are no more than minimal.
The main concern should be "The Body paragraphs support the thesis statement." It is kinda like the main idea and details. The introductions are the statement/main idea, and all of your paragraphs support/build on it. I hope this helped!