<span>party column method would be used here</span>
The answer is replication. It is an activity or an action that will copy or reproduce something; that is done or happening again several times in the same manner and the same way of a theory under a variation of any conditions to establish its applicable borderline and partition.
D. The creation of nation legislature
No, this would not be necessary - what would happen is regulated by the presidential line of succession: the Speaker of the House, and if illegible (e.g. not born in the US) the President pro Tempore of the Senate would become the next president.