What does the term popular sovereignty mean?
a. the ruler of the nation is popular.
b. the government gets its power from a small, elite group of people.
c. government is always legitimate, even if the people disagree.
d. all government power comes from the people.

Popular sovereignty means that D) all government power comes from the people.  An example of this is from the U.S. Constitution which is the phrase of "We The People".  This phrase supports the idea that people are the main power and source of the government.  And nothing can happen without their consent.  

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