I believe the correct answer is true.
Its main activity was to prevent labor disputes during the cause of the war and also ensure that higher wage settlements did not result in inflation.
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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Well..as far as i learned from my knowledge the answer would be in the past, the military and the FBI have prevented a number of terrorist attacks.
Secondly, wasn't there suppose to be an option answers for your question ?
Well in October 7, 1763 king george III issued a proclamation that forbade colonial settlement west of the appalachian mountains. he hoped to placate native americans who had sided against him during the recently concluded seven years war.