Answer:
The correct answer is option (a) "A study of the genetic links between DNA samples found at a prehistoric central Asian archeological site and west coast Native American tribes".
Explanation:
A study of the genetic links between DNA samples found at a prehistoric central Asian archeological site and west coast Native American tribes has the potential to harms people that do not participate in the research study. If the DNA samples are not handled properly or the researchers do not take precautions to interact with members of the tribe, the research could be harmful for members of west coast Native American tribes. Native American tribes are usually isolated to pathogens that the researchers could carry, and they could infect them by getting close to them without taking precautions.