Answer:
Preston seems to point the blame on the angry Bostonian mob, they started firing their muskets because they heard some one yelled fire.
The transcontinental railroad had a huge impact on the economy. The transcontinental railroad allowed for the transportation of goods over long distances. This was especially helpful for the industrial north at the time. By the 1890s, the United States was becoming an urban nation, and railroads supplied cities and towns with food, fuel, building materials, and access to markets.
Be avoided and the Japanese would surrender
It reduces the per unit fixed cost. As a result of increased production, the fixed cost gets spread over more output than before. It reduces the per unit variable costs. Economies of scale bring down the per unit variable costs.
Your answers are correct. A&C.