Not only did it renew the morale of the American public, but it convinced potential foreign partners, such as France, that American could win the war<span>, and that it might be in their best interests to send aid.</span>
DOT (department of transportation)
Your answer is going to be A. Because an act had been signed to help encourage the building of this railroad.
I hope this helps!!!!!!!!!!!!! Please mark me as Brainiest