Answer:
Medical researchers had to give the right to decide to the patient about their participation in the research.
Explanation:
According to the regulation of medical research, the researchers should follow certain ethics regarding their research. Medical research involves the participation of the people who are considered as subjects of research.
While conducting the research the researcher must follow some ethical rules towards the patients. The most important ethical standard under the article 20, 21 and 22 is to declare the Helsinki, through which the researchers are needed to take grant the right to make decision whether they would like to participate in the research or not.
1-hepatitis because it is a disease characterized by inflammation of the liver i hope this helps you at least a little bit with number one
<span>Teenagers strive to fit in with their peers as they begin to spend less of their free time with their families and more of it engaged in activities with friends. Peer pressure can have negative and positive effects on teenagers. Teens may aspire to get good grades and join a club that a peer whom they admire leads. Teens may also find themselves pressured into doing things, such as drinking or stealing, that they likely wouldn't engage in if they were on their own.
Hope this helps.</span>
I'd say D. Environment resembles their school setting