Incorrect. The answer is d. Before the coming of the railroad, travel was largely measured by the distance that a human or a horse could cover before becoming exhausted. Railroads and steam power allowed for a constant, rapid rate of travel with no limits on its duration.
Correct. The answer is d. Before the coming of the railroad, travel was largely measured by the distance that a human or a horse could cover before becoming exhausted. Railroads and steam power allowed for a constant, rapid rate of travel with no limits on its duration.