I don't know what the "followings" are, but I can tell you that Tenement buildings had no interest in caring for the people who lived there. Tenement housing had its people share bathrooms, there were no lights(besides the window), and the rooms were small and cramped.
After the defeat in WWII, Germany's capital, Berlin was divided into four zones which were separately governed by France,Britain,US and the USSR. In 1946,the three nations merge the zone of France, Britain and US to be governed by one government, USSR strongly protested against it as the merged zones account for 75% of Germany's original population. In reaction,USSR cut off all land routes linking Berlin and the Western zone,claiming that it was to protect USSR's economy. The event was known as Berlin Blockade.
C is your Answer:
Workers tried to get improved conditions and wages through labor unions. These unions often started friendly enough, but they soon became organizations for winning improvements by collective bargaining and strikes.
<span>Industrial workers also tried political action. The struggle to win the right to vote and to extend their political power was one of the major factors in the spread of democracy during the 19th century.</span>