Answer:
A. ethics
Step-by-step explanation:
As he starts talking about the equallness of all mankind, and how we all have the same rights and have the right to pursuit happines, the declartion of independence tries to make an appeal to ethics to establish the fact that when a government is affecting and destroying a certain population or civilization, it is the right of the society to reform the government, abolish it and create a new form of government where all men are treated equal and have the same opportunities.