Final answer:
The sentence from the Declaration of Independence that emphasizes the idea of representative government as the basis of our Constitutional democracy is: 'The Declaration concludes that the people are free to 'alter or abolish' repressive forms of government.'
Step-by-step explanation:
The sentence from the Declaration of Independence that best develops the idea that representative government is the basis of our Constitutional democracy is:
'The Declaration concludes that the people are free to 'alter or abolish' repressive forms of government.'
This sentence highlights the importance of the people's power to change and shape their government through representation, which is a fundamental characteristic of a Constitutional democracy. It emphasizes that the government exists to serve the people's interests and can be altered or abolished if it becomes repressive or fails to fulfill its duties.