The answer is D., as it's known in the history that the Berlin Wall was created so people from East Germany could not escape to the West.
It was mainly the "(A) Construction of railroads" that played the largest role in increasing the <span>settlement of the Great Plains, since this radically reduced the travel time it took to reach the Plains from the East Coast. </span>
Answer: Though Rococo emerged from Baroque art, Rococo artists turned away from Baroque's dramatic symbolism of the church's power. Instead, they honed in on elegantly elevating the power and class of French aristocrats. Rococo represented “secular high fashion.”
Explanation: