It would be between increased population, a steady stream of agricultural production, and technological advancements. As for the most important one of those three; that would be agricultural production.
Both promoted the idea that laws should apply equally to all citizens.
Founded in the Northern states in 1854 by anti-slavery activists, modernizers, ex <span>Whigs and </span>ex Free Soilers<span>, the Republican Party quickly became the principal opposition to the dominant Democratic Party and the briefly popular Know Nothing Party. Hope this helps you! =D</span>
The correct answer is D (The last one)