I went over this but I am not sure so I am pretty sure that it is korea.
if the nation in question is America then the reason why our society has much more to offer than other society is because American society has the largest diversity than any other nation.
hope this helps!
After deportation trains arrived at the killing centers, guards ordered the deportees to get out and form a line. The victims then went through a selection process. Men were separated from women and children. A Nazi, usually an SS physician, looked quickly at each person to decide if he or she was healthy and strong enough for forced labor. This SS officer then pointed to the left or the right; victims did not know that individuals were being selected to live or die. Babies and young children, pregnant women, the elderly, the handicapped, and the sick had little chance of surviving this first selection.