Read the following context and choose the best option to answer the question.
Context: The passing words regarding the CM - US Experimental Trials made the boy sick to his stomach , nearly causing him to throw up whatever he had managed to eat during dinner . How the doctors could treat torture so clinically Ken did not know ; the implications almost prompted him to stay in for the night . Logically , he really should have since he had n't had a moment of peace since two days prior . But Ken still had work to finish .
Question: What may be a fact about the trials ?
Options: 
- The trials are unethical .
 - The trials are under investigation .
 - The trials have been killing the boy .
 - None of the above choices .


The trials are unethical .