DrVan Offer Is Conducting a Research Study That Will Expose

Dr.Van Offer is conducting a research study that will expose the subjects to a great deal of stress.What might be one way to protect his subjects from harm?

A) Tell them to make out their wills before they start the study.
B) Screen potential candidates to ensure that no one is at high risk for heart attack,mental breakdown,etc.
C) Be deceptive and don't tell the subjects that they might be exposed to stress.
D) Tell them to take an anti-anxiety medication before they start the study.