Answer:
Explanation:
The first transcontinental railroad was a 1,912-mile (3,077 km) continuous railroad line constructed between 1863 and 1869 that connected the existing eastern U.S. rail network ... The report failed however to include detailed topographic maps of potential routes needed to estimate the feasibility, cost and select the best ...
About the other dots, don't worry about them alright?
"A<span>s a refueling station for U.S. ships traveling to the Philippines" would be the best option from the list since Guam was only captured in the 20th century, which put the US into two world wars with reach into the Pacific.</span>