i would say C not entirely sure but that would make the most sense to me
To keep things in order with all the cultural changes going on.
Yes, if the biospecimens are de-identified then the research is no longer considered human subjects research.
Option: C
Explanation:
It is in the norms that in same type of research, both the researchers need to maintain some ethics and rules that if they do same type of experiments and use same materials they should acknowledge the other or take permission before doing that.
Here researcher A is conducting research on emphysema using bio specimen from human subjects and researcher B is doing research on lung cancer. He also need bio specimen. But as it is mentioned in the consent form that specimen is de identified so no problem for researcher B in using same specimen like researcher A.
