What most accurately evaluates the effect of the Albany Plan of Union upon the new national government?

It served as an early model for unification of the colonies and was influential during the drafting of the Articles of Confederation.

despite the failure of the Albany Plan, it served as a model for future attempts at union: it attempted to establish the division between the executive and legislative branches of government, while establishing a common governmental authority to deal with external relations. More importantly, it conceived of the colonies of mainland North America as a collective unit, separate not only from the mother country, but also from the other British colonies in the West Indies and elsewhere.