PLEASE HELPHELPHELPHELPHELP ASAP WILL GIVE BRAINLIEST TO THE FIRST CORRECT ANSWER! Which region had the most amount of railroad mileage in 1850?

Railroad Mileage Increases

so basically the 1850s had seen enormous growth in the railroad industry so that by 1861, 22,000 miles of track had been laid in the northern states and 9500 miles in the south.The great rail centers in the north were chattanooga, Atlanta and most important.Richmond very little track had yet been laid west of the Mississippi

if i knew what was the answer i wouldve put it

i believe the correct answer is option b. most eastern european nations joined nato.

though i could be wrong, option d. the eastern european nations were granted complete independence, would be another choice.

hope this ! : )