The best and most correct answer among the choices provided by your question is the second choice which is "railroad tracks."
<span>By 1860 the Midwest and the East were united by a network of railroad tracks.</span>
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<span>The
strategic crossroads northeast of Richmond is the “Cold Harbor”.
The Battle of the Cold Harbor was on the final battles fought in 1864
during the American Civil War. The Peninsular Campaign led to a combat in
between the Union led by Lt. Gen. Ulysses S. Grant and the army of
Confederate Gen. Robert E. Lee.
When Grant was not able to break the lines drawn by Lee in Spotsylvania
both the armies headed towards the Anna River that was only 25 miles from
Richmond.
After this battle, Grant continued to pursue his goal of attacking the
capital of the Confederate, which led to another battle just 8 miles from the
northeast of Richmond, which was in the vicinity of the strategic crossroads
northeast of Richmond, called Cold Harbor.
The name Cold Harbor was derived from the name of a tavern and the place
was situated in between the rivers Chickahominy and Pamunkey.
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<span>Rockefeller used the size of his company Standard Oil to negotiate preferential rates with railroad companies to transfer his oil in the refinement process. By gaining the upper hand in transportation costs, he was able to horizontally integrate his competitors into his firm working to establish a monopoly in the American oil industry. </span>
Answer:
B please give me brainliest I did the test and it was B
Explanation:
