<span>The pros of the industrial revolution were that wealth increased overall, more people entered the middle class and quality of living increased for everyone as a result of technology. The cons include pollution, accidental death and overpopulated cities.</span>
Prime Minister Neville Chamberlain
D would be the answer I would choose, I'm not 100%
The effect that Crusades had on trade was that the Europeans developed the habit of luxury goods and returning crusaders brought kids back from Jerusalem. The Crusaders was one of the most important and significant events of European history and the Middle East.