What principle recorded in the opening to the Declaration of Independence does the opinion in this case call into question?

Legislation is powerless to eradicate racial instincts, or to abolish distinctions based upon physical differences, and the attempt to do so can only result in accentuating the difficulties of the present situation. If the civil and political rights of both races be equal, one cannot be inferior to the other civilly or politically. If one race be inferior to the other socially, the constitution of the United States cannot put them upon the same plane. - Plessy v. Ferguson, 1896

A. That to secure these rights, Governments are instituted among Men
B. That they are endowed by their Creator with certain unalienable Rights
C. That among these are Life, Liberty and the pursuit of Happiness
D. That all men are created equal

A.P.EX​