The Civil War ended with the capitulation of General Robert E. Lee at Appomattox.
Answer:
It created a resource damand that increased.
The anwser would be b because if u read the passasge u will see that the only one it sttaes is B
One effect of the Interstate Highway Act of 1957 was "<span>b. the creation of speed limits as a result of increased highway accidents" since people were not used to driving at such speeds for such long distances. </span>