Popular sovereignty is the idea that the people within a geographic territory should be able to make decisions about how they are represented or governed. The idea is to maintain the consent of the people through elected representatives. Therefore the notion of popular sovereignty is represented in the notion that "The people that live in a territory should choose whether to allow slavery or not."
Probably because any activities related to environment protection require a change of mentality and habits and participation of everyone in order to be fruitful.
<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be "The Good Neighbor Policy", since this was implemented under FDR to form friendly relations with Latin America. </span></span>