The main reason citizens have rights and responsibilities is to

a) allow the government to share power.
b) punish those who do not follow the rules.
c) keep the power of the country with its citizens.
d) to make the country the most powerful in the world.

C) keep the power of the country with its citizens.

Explanation:

This is the main reason a country protects the rights and responsibilities of its citizens. In a democracy, the power of the government and the state are considered to be found in the hands of its citizens. Therefore, the government is only able to "govern" because citizens agree to place power in the hands of their representatives. By protecting these democratic rights, the people can ensure that the government does not abuse the powers that were granted to it.

in this part of the declaration it refers to the point when american people didn't recognize the british domain and   breaks the political bands with britain, they forced a respectful separation.

mankind was created and entitled equally with rights   which were life, freedom and the seeking for happiness.