The correct explanation for how the Declaration of Independence argued that the British government had violated the concept of the social contract is:
The Declaration of Independence demonstrated how the British government did not live up to its obligation to protect natural rights.
This response reflects the fundamental premise of the social contract theory, particularly as articulated by Enlightenment thinkers like John Locke, who argued that governments are established to protect the natural rights of life, liberty, and property, and that failure to do so justifies the people's right to alter or abolish that government.