Explain how Jefferson in the Declaration of Independence declares the Monarchy to be insufficient in the social contract and how he promotes democracy as a new and better alternative.

By giving the example of revolt by American colonies against British.

Explanation:

Jefferson declares in the Declaration of Independence that the Monarchy  is not sufficient in the social contract because he thought that people have some right which can't be taken away from them such as right of freedom and right to live a happy life which can only be achieve when there is democracy and not present in Monarchy  so that's why the people of american colonies declared independence because they were against the Monarchy  of British empire and in favor of American democracy.