Which of the following is NOT true about the American transportation in the 1860s？A．The im

Which of the following is NOT true about the American transportation in the 1860s？

A．The impact of railroads was still limited.

B．Passengers and freight had to transfer from railroads to other modes of transportation to reach western destinations.

C．Wagon freighters continued operating.

D．Railroad travel was quite expensive.

请帮忙给出正确答案和分析，谢谢！