Which of the following statements are true regarding trans-continental railways?
1. The Trans-Siberian Railway is the longest railway line in the world, connecting Moscow with Vladivostok.
2. The Union Pacific and Central Pacific railroads link the east and west coasts of the United States.
3. The Canadian Pacific Railway was built to fulfill the promise of connecting British Columbia with the rest of Canada.
4. Trans-continental railways primarily transport passengers and rarely carry goods or freight.
1
1, 2, and 3
2
2, 3, and 4
3
1, 2, and 4
4
1, 3, and 4