Answer:
Beneficence.
Explanation:
Principle of beneficence can be defined as a moral obligation of researchers, physicians or scientists to act in a way that is beneficial to others, prevent and remove conditions that could be harmful, and rescue individuals that are in danger.
This ultimately implies that, the principle of beneficence is an ethical or moral rule that is mainly focused on promoting actions that are good and beneficial to others while limiting any potential for harm.
Hence, the principle of beneficence means that researchers should attempt to maximize the benefits of participation and take steps to identify and limit the potential for harm
To complete the given sentence or statement the first and second answer will be the parents need to worry more about their children's exposure to wood smoke than their exposure to carbon monoxide, if the 2010 study of children in western Canada is accurate.