According to the federal regulations for protecting research subjects is a living individual about whom an investigator obtains?

According to federal regulations for protecting research subjects, a living individual about whom an investigator obtains data through intervention or interaction, or obtains identifiable private information, is considered a "human subject." These regulations, primarily outlined in the Common Rule (45 CFR 46), ensure that the rights and welfare of research subjects are protected, requiring informed consent and ethical oversight. Researchers must adhere to these guidelines to promote the safety and dignity of participants in their studies.