Read the following statement and answer the question that follows by choosing the correct option:

In the case of Minister of Home Affairs and Another v Fourie and Another (CCT 60/04) [2005] ZACC 19, the Constitutional Court found the definition of marriage to be unconstitutional on grounds of the fundamental rights to equality and human dignity.

On which division of South African private law did the Constitution have an influence in the case of Minister of Home Affairs v Fourie?