I don't know what "all other" factors could mean - since we don't know what factors have already been mentioned - but I assume that the pay and work conditions would be the same (those could be the "all other" here and the difference is Italy vs Germany/Belgium).
Generally, Italy is not a very likely destination for migrant workers, since it has recently been struggling economically. The payment, working conditions and work stability are likely to be better in Germany or Belgium, so if one can find a job, there, one is more likely to go to Germany or Belgium
The large states holding vast amounts of western land ceded the land to the government under the Articles so that all the states could share in the wealth of those lands.
Reaching out to Americans who had traditionally not participated in political process.
The answer is true so it will be A
