The term is <span>Popular sovereignty
This voting process was proposed by Senator Douglass in 1850 and regarded as one of the most controversial government decision in united states history.
the difference of decision between northern states and southern states regarding this matter eventually led to the American Civil War.</span>
D is the answer for the question
China the last emperor to rule before the overthrow of the Quin Dynasty
First one , third one ,the fourth one an d the last one , please make me the brainlyest so I could help you more
