Answer:
USA, Canada and the UK were one of the first world countries in developing, specially in the school system. They invented social studies in order to teach political science, history and geography so the students could have better understanding about the world around them.
A physician recruiting his patients
<span>In deferential vulnerability the authority over the prospective subject is due to informal power relationships rather than formal hierarchies. The power relationship may be based on gender, race, or class inequalities, or they can be inequalities in knowledge (such as in the doctor-patient relationship). Like institutional vulnerability, deferential vulnerability increases the risk of harm that informed consent would be compromised because it is not fully voluntary.</span>
A. Unskilled will be best answer
Answer: The Constitutional divide power between the U.S. federal government AND state governments. I hope this helps.
I think the answer is taproot