To make it more reasonable is the answer to this question
The <span> important event which led neutral civilians in the South to give their support to the Patriots was: </span>the Patriots' decisive victory at Kings Mountain, South Carolina
Carolina is located directly in the middle of Northern and Southern states so they basically have no political affiliation. After winning the battle of Kings Mountain, half of Caroline (the Northern Carolina) became affiliated with the Northern states.
With no context I would guess that the answer is <span>an Irish immigrant. This is simply becuase I believe they are more likely to be starving and without housing than any other immigrants on the answer choices.</span>