I believe the answer is B.
Answer:
With the expansion of the Industrial Revolution in the U.K, they soon found out that they needed more raw materials to not only invent but also create their products. The Colonial Empire was located around the world, and was able to produce much of the needed natural material due to their suitable climates for different materials. These materials helped with the building of Great Britain, not only economically, but also militarily.
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because they were forced to settle there by the American and European settlers.
They achieved unification in the 19th century!
<span>Many city dwellers crowded into multifamily, often unsanitary, settlement houses is </span>true.