Pretty sure it is C best choice
Allowed for echolocation and underwater discoveries such as study of marine life
monetary inflation occurring at a very high rate
<u>A. Popular sovereignty.</u>
This political doctrine holds that all political power that governs society (authorities of states and federal government) is inherent in the people, that is to say, people create it, gives consents to it and sustains it. The U.S. Constitution this concept by guaranteeing people's right to choose their representative (individuals that advocate for their needs, desires, and projects as a society ) through fair and democratic elections.
Your answer is D. All of the above.