<em>North.</em>
Explanation:
During this time, the North had focused on industrialization and had many factories. This was very different from the South and even the West, as they were still focused on agricultural advances. The North did not have a good enough climate and soil for agriculture, but with the creation of cities and the abundance of people, industrialization wasn't much of a problem.
If the federal government had offered Western lands at a low cost, some of the labor force working in the factories in the North may take them up on that offer. Many people did want to have a quiet, simple, farming life and with the low cost of land out West, many people wanted to take the offer. The North wasn't happy about this, as they needed workers to earn income.
The biggest city<span> in the </span>world<span> with 36.7 million inhabitants</span>
The answer is Not 100%, I chose it and got it wrong. I hope that helps a little.
Ejemplos de las fuentes primarias
Un libro que sería fuente primaria es por ejemplo un censo electoral, o el manuscrito original de “El Príncipe” de Maquiavelo, mientras que una fuente secundaria seria un libro que analice los datos del censo o un análisis del libro de Maquiavelo.