Answer:
The answer is Option A: Will the researcher have collaborators at the research site abroad?
Step-by-step explanation:
If the researcher will have collaborators in the host country it may be reasonable for the researchers to also present the project for review at with a local institutional review board in the host country, however many countries around the world do not have the same kind of official or formal review process for research work or established ethical standards. In such cases, it is up to individual researchers to carry out their research studies ethically and without harm to the research subjects.