The city you are looking for is Beijing
First time political transferred from one to another
I'd say they shut down, because most of the men enlisted as soldiers for the war. At that time/era, the workforce were mainly men, with the women staying home and taking care of the house.
The correct answer is d): Poland. Britain and France declared war on Germany on 3rd September 1939, after Germany attacked Poland two days before. France did this, because it previously had an agreement with Poland that it would if Poland gets attacked by Germany.