"the first voluntary immigrants to the territory now constituting the u. s. were from western europe. the first great influx began early in the 19th century when large numbers of europeans left their homelands to escape the economic distress resulting from the transformation of industry by the factory system and the concurrent shift from small-scale to large-scale farming. at the same time, wars, political oppression, and religious persecution caused a great many europeans to seek freedom and security in the u. s." what is the best research question generated from reading this passage? a. how many asians came to the u. s. during this time? b. why is america an immigrant population? c. what wars and political and religious persecutions were occurring in europe at this time? d. how has the history of immigration affected america?