The correct answer is A) The process for adding future states to the union.
One of the major disagreements that the framers did not face at the Constitutional Convention was "The process for adding future states to the union."
That was not part of the discussion during the Constitutional Convention.
The delegates that participated in the Constitutional Convention in Philadelphia basically focused on three key topics: 1) the power that should be given to the federal government. Trying to correct what had been established in the Articles of Confederation, the delegates established a more solid central government divided into three branches: the executive, the legislative, and the judicial. 2) the representation of the states in Congress, larger states should have more representation than smaller states. And 3) the issue of slavery; with a big division of northern states that supported abolition and southern states that supported slavery.